Home / 87,007.92-120,088.20-56,798.16

Finding the Fourth Proportional to 87,007.92, 120,088.20 and 56,798.16

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Solution

The fourth proportional to 87,007.92, 120,088.20 and 56,798.16 is: 78,392.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,007.92 : 120,088.20 = 56,798.16 : x
  2. Step 2: Convert to fraction form
    87,007.92/120,088.20 = 56,798.16/x
  3. Step 3: Cross multiply
    87,007.92x = 120,088.20 × 56,798.16
  4. Step 4: Simplify right side
    87,007.92x = 6,820,788,797.71
  5. Step 5: Solve for x
    x = 6,820,788,797.71/87,007.92
  6. Step 6: Final answer
    x = 78,392.73

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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.