Home / 87,024.64-120,032.54-74,070.80

Finding the Fourth Proportional to 87,024.64, 120,032.54 and 74,070.80

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Solution

The fourth proportional to 87,024.64, 120,032.54 and 74,070.80 is: 102,165.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,024.64 : 120,032.54 = 74,070.80 : x
  2. Step 2: Convert to fraction form
    87,024.64/120,032.54 = 74,070.80/x
  3. Step 3: Cross multiply
    87,024.64x = 120,032.54 × 74,070.80
  4. Step 4: Simplify right side
    87,024.64x = 8,890,906,263.83
  5. Step 5: Solve for x
    x = 8,890,906,263.83/87,024.64
  6. Step 6: Final answer
    x = 102,165.39

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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.