Home / 76,913.60-115,370.40-24,339.20

Finding the Fourth Proportional to 76,913.60, 115,370.40 and 24,339.20

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Solution

The fourth proportional to 76,913.60, 115,370.40 and 24,339.20 is: 36,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,913.60 : 115,370.40 = 24,339.20 : x
  2. Step 2: Convert to fraction form
    76,913.60/115,370.40 = 24,339.20/x
  3. Step 3: Cross multiply
    76,913.60x = 115,370.40 × 24,339.20
  4. Step 4: Simplify right side
    76,913.60x = 2,808,023,239.68
  5. Step 5: Solve for x
    x = 2,808,023,239.68/76,913.60
  6. Step 6: Final answer
    x = 36,508.80

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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.