Home / 76,891.76-115,282.29-47,248.35

Finding the Fourth Proportional to 76,891.76, 115,282.29 and 47,248.35

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Solution

The fourth proportional to 76,891.76, 115,282.29 and 47,248.35 is: 70,838.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,891.76 : 115,282.29 = 47,248.35 : x
  2. Step 2: Convert to fraction form
    76,891.76/115,282.29 = 47,248.35/x
  3. Step 3: Cross multiply
    76,891.76x = 115,282.29 × 47,248.35
  4. Step 4: Simplify right side
    76,891.76x = 5,446,897,750.48
  5. Step 5: Solve for x
    x = 5,446,897,750.48/76,891.76
  6. Step 6: Final answer
    x = 70,838.51

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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.