Home / 76,985.40-115,405.20-24,366.18

Finding the Fourth Proportional to 76,985.40, 115,405.20 and 24,366.18

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Solution

The fourth proportional to 76,985.40, 115,405.20 and 24,366.18 is: 36,526.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,985.40 : 115,405.20 = 24,366.18 : x
  2. Step 2: Convert to fraction form
    76,985.40/115,405.20 = 24,366.18/x
  3. Step 3: Cross multiply
    76,985.40x = 115,405.20 × 24,366.18
  4. Step 4: Simplify right side
    76,985.40x = 2,811,983,876.14
  5. Step 5: Solve for x
    x = 2,811,983,876.14/76,985.40
  6. Step 6: Final answer
    x = 36,526.20

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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.