Home / 47,416.29-71,128.50-12,355.89

Finding the Fourth Proportional to 47,416.29, 71,128.50 and 12,355.89

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Solution

The fourth proportional to 47,416.29, 71,128.50 and 12,355.89 is: 18,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,416.29 : 71,128.50 = 12,355.89 : x
  2. Step 2: Convert to fraction form
    47,416.29/71,128.50 = 12,355.89/x
  3. Step 3: Cross multiply
    47,416.29x = 71,128.50 × 12,355.89
  4. Step 4: Simplify right side
    47,416.29x = 878,855,921.87
  5. Step 5: Solve for x
    x = 878,855,921.87/47,416.29
  6. Step 6: Final answer
    x = 18,534.89

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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.