Home / 72,609.03-108,816.65-38,805.75

Finding the Fourth Proportional to 72,609.03, 108,816.65 and 38,805.75

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Solution

The fourth proportional to 72,609.03, 108,816.65 and 38,805.75 is: 58,156.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,609.03 : 108,816.65 = 38,805.75 : x
  2. Step 2: Convert to fraction form
    72,609.03/108,816.65 = 38,805.75/x
  3. Step 3: Cross multiply
    72,609.03x = 108,816.65 × 38,805.75
  4. Step 4: Simplify right side
    72,609.03x = 4,222,711,521.71
  5. Step 5: Solve for x
    x = 4,222,711,521.71/72,609.03
  6. Step 6: Final answer
    x = 58,156.84

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1.5x scale

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.