Home / 90,829.80-125,343.12-52,590.96

Finding the Fourth Proportional to 90,829.80, 125,343.12 and 52,590.96

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Solution

The fourth proportional to 90,829.80, 125,343.12 and 52,590.96 is: 72,574.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,829.80 : 125,343.12 = 52,590.96 : x
  2. Step 2: Convert to fraction form
    90,829.80/125,343.12 = 52,590.96/x
  3. Step 3: Cross multiply
    90,829.80x = 125,343.12 × 52,590.96
  4. Step 4: Simplify right side
    90,829.80x = 6,591,915,010.20
  5. Step 5: Solve for x
    x = 6,591,915,010.20/90,829.80
  6. Step 6: Final answer
    x = 72,574.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.