Home / 91,765,130.19-126,639,220.52-49,947,173.92

Finding the Fourth Proportional to 91,765,130.19, 126,639,220.52 and 49,947,173.92

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Solution

The fourth proportional to 91,765,130.19, 126,639,220.52 and 49,947,173.92 is: 68,928,918.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,765,130.19 : 126,639,220.52 = 49,947,173.92 : x
  2. Step 2: Convert to fraction form
    91,765,130.19/126,639,220.52 = 49,947,173.92/x
  3. Step 3: Cross multiply
    91,765,130.19x = 126,639,220.52 × 49,947,173.92
  4. Step 4: Simplify right side
    91,765,130.19x = 6,325,271,172,405,673
  5. Step 5: Solve for x
    x = 6,325,271,172,405,673/91,765,130.19
  6. Step 6: Final answer
    x = 68,928,918.42

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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.