Home / 62,487.72-93,751.02-18,120.78

Finding the Fourth Proportional to 62,487.72, 93,751.02 and 18,120.78

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Solution

The fourth proportional to 62,487.72, 93,751.02 and 18,120.78 is: 27,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,487.72 : 93,751.02 = 18,120.78 : x
  2. Step 2: Convert to fraction form
    62,487.72/93,751.02 = 18,120.78/x
  3. Step 3: Cross multiply
    62,487.72x = 93,751.02 × 18,120.78
  4. Step 4: Simplify right side
    62,487.72x = 1,698,841,608.20
  5. Step 5: Solve for x
    x = 1,698,841,608.20/62,487.72
  6. Step 6: Final answer
    x = 27,186.81

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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.