Home / 90,177.76-135,227.45-42,806.42

Finding the Fourth Proportional to 90,177.76, 135,227.45 and 42,806.42

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Solution

The fourth proportional to 90,177.76, 135,227.45 and 42,806.42 is: 64,191.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,177.76 : 135,227.45 = 42,806.42 : x
  2. Step 2: Convert to fraction form
    90,177.76/135,227.45 = 42,806.42/x
  3. Step 3: Cross multiply
    90,177.76x = 135,227.45 × 42,806.42
  4. Step 4: Simplify right side
    90,177.76x = 5,788,603,598.47
  5. Step 5: Solve for x
    x = 5,788,603,598.47/90,177.76
  6. Step 6: Final answer
    x = 64,191.04

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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.