Home / 68,430.88-102,646.24-49,829.28

Finding the Fourth Proportional to 68,430.88, 102,646.24 and 49,829.28

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Solution

The fourth proportional to 68,430.88, 102,646.24 and 49,829.28 is: 74,743.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,430.88 : 102,646.24 = 49,829.28 : x
  2. Step 2: Convert to fraction form
    68,430.88/102,646.24 = 49,829.28/x
  3. Step 3: Cross multiply
    68,430.88x = 102,646.24 × 49,829.28
  4. Step 4: Simplify right side
    68,430.88x = 5,114,788,233.91
  5. Step 5: Solve for x
    x = 5,114,788,233.91/68,430.88
  6. Step 6: Final answer
    x = 74,743.86

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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.