Home / 90,988.12-125,561.64-62,306.92

Finding the Fourth Proportional to 90,988.12, 125,561.64 and 62,306.92

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Solution

The fourth proportional to 90,988.12, 125,561.64 and 62,306.92 is: 85,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,988.12 : 125,561.64 = 62,306.92 : x
  2. Step 2: Convert to fraction form
    90,988.12/125,561.64 = 62,306.92/x
  3. Step 3: Cross multiply
    90,988.12x = 125,561.64 × 62,306.92
  4. Step 4: Simplify right side
    90,988.12x = 7,823,359,058.55
  5. Step 5: Solve for x
    x = 7,823,359,058.55/90,988.12
  6. Step 6: Final answer
    x = 85,982.20

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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.