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Finding the Fourth Proportional to 60,123.92, 90,184.96 and 20,681.37

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Solution

The fourth proportional to 60,123.92, 90,184.96 and 20,681.37 is: 31,021.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,123.92 : 90,184.96 = 20,681.37 : x
  2. Step 2: Convert to fraction form
    60,123.92/90,184.96 = 20,681.37/x
  3. Step 3: Cross multiply
    60,123.92x = 90,184.96 × 20,681.37
  4. Step 4: Simplify right side
    60,123.92x = 1,865,148,526.20
  5. Step 5: Solve for x
    x = 1,865,148,526.20/60,123.92
  6. Step 6: Final answer
    x = 31,021.74

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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.