Home / 92,988.18-128,329.65-52,156.14

Finding the Fourth Proportional to 92,988.18, 128,329.65 and 52,156.14

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Solution

The fourth proportional to 92,988.18, 128,329.65 and 52,156.14 is: 71,978.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,988.18 : 128,329.65 = 52,156.14 : x
  2. Step 2: Convert to fraction form
    92,988.18/128,329.65 = 52,156.14/x
  3. Step 3: Cross multiply
    92,988.18x = 128,329.65 × 52,156.14
  4. Step 4: Simplify right side
    92,988.18x = 6,693,179,191.55
  5. Step 5: Solve for x
    x = 6,693,179,191.55/92,988.18
  6. Step 6: Final answer
    x = 71,978.82

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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.