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Finding the Fourth Proportional to 45,007.92, 67,510.80 and 20,041.56

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Solution

The fourth proportional to 45,007.92, 67,510.80 and 20,041.56 is: 30,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,007.92 : 67,510.80 = 20,041.56 : x
  2. Step 2: Convert to fraction form
    45,007.92/67,510.80 = 20,041.56/x
  3. Step 3: Cross multiply
    45,007.92x = 67,510.80 × 20,041.56
  4. Step 4: Simplify right side
    45,007.92x = 1,353,021,748.85
  5. Step 5: Solve for x
    x = 1,353,021,748.85/45,007.92
  6. Step 6: Final answer
    x = 30,061.86

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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.