Home / 76,713.60-115,070.40-24,139.20

Finding the Fourth Proportional to 76,713.60, 115,070.40 and 24,139.20

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Solution

The fourth proportional to 76,713.60, 115,070.40 and 24,139.20 is: 36,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,713.60 : 115,070.40 = 24,139.20 : x
  2. Step 2: Convert to fraction form
    76,713.60/115,070.40 = 24,139.20/x
  3. Step 3: Cross multiply
    76,713.60x = 115,070.40 × 24,139.20
  4. Step 4: Simplify right side
    76,713.60x = 2,777,707,399.68
  5. Step 5: Solve for x
    x = 2,777,707,399.68/76,713.60
  6. Step 6: Final answer
    x = 36,208.80

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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.