Home / 87,693.37-120,988.15-53,666.38

Finding the Fourth Proportional to 87,693.37, 120,988.15 and 53,666.38

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Solution

The fourth proportional to 87,693.37, 120,988.15 and 53,666.38 is: 74,042.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,693.37 : 120,988.15 = 53,666.38 : x
  2. Step 2: Convert to fraction form
    87,693.37/120,988.15 = 53,666.38/x
  3. Step 3: Cross multiply
    87,693.37x = 120,988.15 × 53,666.38
  4. Step 4: Simplify right side
    87,693.37x = 6,492,996,033.40
  5. Step 5: Solve for x
    x = 6,492,996,033.40/87,693.37
  6. Step 6: Final answer
    x = 74,042.04

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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.