Home / 91,123.14-125,763.78-55,306.23

Finding the Fourth Proportional to 91,123.14, 125,763.78 and 55,306.23

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Solution

The fourth proportional to 91,123.14, 125,763.78 and 55,306.23 is: 76,331.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,123.14 : 125,763.78 = 55,306.23 : x
  2. Step 2: Convert to fraction form
    91,123.14/125,763.78 = 55,306.23/x
  3. Step 3: Cross multiply
    91,123.14x = 125,763.78 × 55,306.23
  4. Step 4: Simplify right side
    91,123.14x = 6,955,520,542.35
  5. Step 5: Solve for x
    x = 6,955,520,542.35/91,123.14
  6. Step 6: Final answer
    x = 76,331.00

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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.