Home / 74,125.83-111,123.67-38,512.16

Finding the Fourth Proportional to 74,125.83, 111,123.67 and 38,512.16

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Solution

The fourth proportional to 74,125.83, 111,123.67 and 38,512.16 is: 57,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,125.83 : 111,123.67 = 38,512.16 : x
  2. Step 2: Convert to fraction form
    74,125.83/111,123.67 = 38,512.16/x
  3. Step 3: Cross multiply
    74,125.83x = 111,123.67 × 38,512.16
  4. Step 4: Simplify right side
    74,125.83x = 4,279,612,558.83
  5. Step 5: Solve for x
    x = 4,279,612,558.83/74,125.83
  6. Step 6: Final answer
    x = 57,734.43

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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.