Home / 47,423.76-71,139.78-19,345.92

Finding the Fourth Proportional to 47,423.76, 71,139.78 and 19,345.92

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Solution

The fourth proportional to 47,423.76, 71,139.78 and 19,345.92 is: 29,020.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,423.76 : 71,139.78 = 19,345.92 : x
  2. Step 2: Convert to fraction form
    47,423.76/71,139.78 = 19,345.92/x
  3. Step 3: Cross multiply
    47,423.76x = 71,139.78 × 19,345.92
  4. Step 4: Simplify right side
    47,423.76x = 1,376,264,492.70
  5. Step 5: Solve for x
    x = 1,376,264,492.70/47,423.76
  6. Step 6: Final answer
    x = 29,020.57

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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.