Home / 96,909.12-145,419.84-40,744.80

Finding the Fourth Proportional to 96,909.12, 145,419.84 and 40,744.80

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Solution

The fourth proportional to 96,909.12, 145,419.84 and 40,744.80 is: 61,140.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,909.12 : 145,419.84 = 40,744.80 : x
  2. Step 2: Convert to fraction form
    96,909.12/145,419.84 = 40,744.80/x
  3. Step 3: Cross multiply
    96,909.12x = 145,419.84 × 40,744.80
  4. Step 4: Simplify right side
    96,909.12x = 5,925,102,296.83
  5. Step 5: Solve for x
    x = 5,925,102,296.83/96,909.12
  6. Step 6: Final answer
    x = 61,140.81

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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.