Home / 84,639.47-126,980.19-59,728.19

Finding the Fourth Proportional to 84,639.47, 126,980.19 and 59,728.19

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Solution

The fourth proportional to 84,639.47, 126,980.19 and 59,728.19 is: 89,607.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,639.47 : 126,980.19 = 59,728.19 : x
  2. Step 2: Convert to fraction form
    84,639.47/126,980.19 = 59,728.19/x
  3. Step 3: Cross multiply
    84,639.47x = 126,980.19 × 59,728.19
  4. Step 4: Simplify right side
    84,639.47x = 7,584,296,279.66
  5. Step 5: Solve for x
    x = 7,584,296,279.66/84,639.47
  6. Step 6: Final answer
    x = 89,607.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.