Home / 47,139.92-70,569.54-30,451.30

Finding the Fourth Proportional to 47,139.92, 70,569.54 and 30,451.30

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Solution

The fourth proportional to 47,139.92, 70,569.54 and 30,451.30 is: 45,586.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,139.92 : 70,569.54 = 30,451.30 : x
  2. Step 2: Convert to fraction form
    47,139.92/70,569.54 = 30,451.30/x
  3. Step 3: Cross multiply
    47,139.92x = 70,569.54 × 30,451.30
  4. Step 4: Simplify right side
    47,139.92x = 2,148,934,233.40
  5. Step 5: Solve for x
    x = 2,148,934,233.40/47,139.92
  6. Step 6: Final answer
    x = 45,586.29

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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.