Home / 90,706.35-125,123.67-54,398.13

Finding the Fourth Proportional to 90,706.35, 125,123.67 and 54,398.13

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Solution

The fourth proportional to 90,706.35, 125,123.67 and 54,398.13 is: 75,038.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,706.35 : 125,123.67 = 54,398.13 : x
  2. Step 2: Convert to fraction form
    90,706.35/125,123.67 = 54,398.13/x
  3. Step 3: Cross multiply
    90,706.35x = 125,123.67 × 54,398.13
  4. Step 4: Simplify right side
    90,706.35x = 6,806,493,666.74
  5. Step 5: Solve for x
    x = 6,806,493,666.74/90,706.35
  6. Step 6: Final answer
    x = 75,038.78

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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.