Home / 91,765,129.19-126,639,219.14-49,947,172.92

Finding the Fourth Proportional to 91,765,129.19, 126,639,219.14 and 49,947,172.92

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Solution

The fourth proportional to 91,765,129.19, 126,639,219.14 and 49,947,172.92 is: 68,928,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,765,129.19 : 126,639,219.14 = 49,947,172.92 : x
  2. Step 2: Convert to fraction form
    91,765,129.19/126,639,219.14 = 49,947,172.92/x
  3. Step 3: Cross multiply
    91,765,129.19x = 126,639,219.14 × 49,947,172.92
  4. Step 4: Simplify right side
    91,765,129.19x = 6,325,270,976,589,618
  5. Step 5: Solve for x
    x = 6,325,270,976,589,618/91,765,129.19
  6. Step 6: Final answer
    x = 68,928,917.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.