Home / 62,487.60-93,731.40-18,115.80

Finding the Fourth Proportional to 62,487.60, 93,731.40 and 18,115.80

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Solution

The fourth proportional to 62,487.60, 93,731.40 and 18,115.80 is: 27,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,487.60 : 93,731.40 = 18,115.80 : x
  2. Step 2: Convert to fraction form
    62,487.60/93,731.40 = 18,115.80/x
  3. Step 3: Cross multiply
    62,487.60x = 93,731.40 × 18,115.80
  4. Step 4: Simplify right side
    62,487.60x = 1,698,019,296.12
  5. Step 5: Solve for x
    x = 1,698,019,296.12/62,487.60
  6. Step 6: Final answer
    x = 27,173.70

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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.