Home / 76,913.40-115,359.30-24,328.20

Finding the Fourth Proportional to 76,913.40, 115,359.30 and 24,328.20

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Solution

The fourth proportional to 76,913.40, 115,359.30 and 24,328.20 is: 36,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,913.40 : 115,359.30 = 24,328.20 : x
  2. Step 2: Convert to fraction form
    76,913.40/115,359.30 = 24,328.20/x
  3. Step 3: Cross multiply
    76,913.40x = 115,359.30 × 24,328.20
  4. Step 4: Simplify right side
    76,913.40x = 2,806,484,122.26
  5. Step 5: Solve for x
    x = 2,806,484,122.26/76,913.40
  6. Step 6: Final answer
    x = 36,488.88

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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.