Home / 74,123.83-111,120.67-38,510.16

Finding the Fourth Proportional to 74,123.83, 111,120.67 and 38,510.16

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Solution

The fourth proportional to 74,123.83, 111,120.67 and 38,510.16 is: 57,731.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,123.83 : 111,120.67 = 38,510.16 : x
  2. Step 2: Convert to fraction form
    74,123.83/111,120.67 = 38,510.16/x
  3. Step 3: Cross multiply
    74,123.83x = 111,120.67 × 38,510.16
  4. Step 4: Simplify right side
    74,123.83x = 4,279,274,781.01
  5. Step 5: Solve for x
    x = 4,279,274,781.01/74,123.83
  6. Step 6: Final answer
    x = 57,731.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.