Home / 81,276.94-121,966.17-58,483.11

Finding the Fourth Proportional to 81,276.94, 121,966.17 and 58,483.11

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Solution

The fourth proportional to 81,276.94, 121,966.17 and 58,483.11 is: 87,761.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,276.94 : 121,966.17 = 58,483.11 : x
  2. Step 2: Convert to fraction form
    81,276.94/121,966.17 = 58,483.11/x
  3. Step 3: Cross multiply
    81,276.94x = 121,966.17 × 58,483.11
  4. Step 4: Simplify right side
    81,276.94x = 7,132,961,256.69
  5. Step 5: Solve for x
    x = 7,132,961,256.69/81,276.94
  6. Step 6: Final answer
    x = 87,761.19

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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.