Home / 81,127.60-121,705.20-24,966.43

Finding the Fourth Proportional to 81,127.60, 121,705.20 and 24,966.43

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Solution

The fourth proportional to 81,127.60, 121,705.20 and 24,966.43 is: 37,453.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,127.60 : 121,705.20 = 24,966.43 : x
  2. Step 2: Convert to fraction form
    81,127.60/121,705.20 = 24,966.43/x
  3. Step 3: Cross multiply
    81,127.60x = 121,705.20 × 24,966.43
  4. Step 4: Simplify right side
    81,127.60x = 3,038,544,356.44
  5. Step 5: Solve for x
    x = 3,038,544,356.44/81,127.60
  6. Step 6: Final answer
    x = 37,453.89

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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.