Home / 87,284.32-120,463.60-53,285.68

Finding the Fourth Proportional to 87,284.32, 120,463.60 and 53,285.68

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Solution

The fourth proportional to 87,284.32, 120,463.60 and 53,285.68 is: 73,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,284.32 : 120,463.60 = 53,285.68 : x
  2. Step 2: Convert to fraction form
    87,284.32/120,463.60 = 53,285.68/x
  3. Step 3: Cross multiply
    87,284.32x = 120,463.60 × 53,285.68
  4. Step 4: Simplify right side
    87,284.32x = 6,418,984,841.25
  5. Step 5: Solve for x
    x = 6,418,984,841.25/87,284.32
  6. Step 6: Final answer
    x = 73,541.10

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1.5x scale

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.