Home / 76,761.47-115,267.25-47,366.17

Finding the Fourth Proportional to 76,761.47, 115,267.25 and 47,366.17

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Solution

The fourth proportional to 76,761.47, 115,267.25 and 47,366.17 is: 71,126.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,761.47 : 115,267.25 = 47,366.17 : x
  2. Step 2: Convert to fraction form
    76,761.47/115,267.25 = 47,366.17/x
  3. Step 3: Cross multiply
    76,761.47x = 115,267.25 × 47,366.17
  4. Step 4: Simplify right side
    76,761.47x = 5,459,767,989.18
  5. Step 5: Solve for x
    x = 5,459,767,989.18/76,761.47
  6. Step 6: Final answer
    x = 71,126.41

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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.