Home / 81,517.76-112,442.73-58,890.00

Finding the Fourth Proportional to 81,517.76, 112,442.73 and 58,890.00

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Solution

The fourth proportional to 81,517.76, 112,442.73 and 58,890.00 is: 81,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,517.76 : 112,442.73 = 58,890.00 : x
  2. Step 2: Convert to fraction form
    81,517.76/112,442.73 = 58,890.00/x
  3. Step 3: Cross multiply
    81,517.76x = 112,442.73 × 58,890.00
  4. Step 4: Simplify right side
    81,517.76x = 6,621,752,901.78
  5. Step 5: Solve for x
    x = 6,621,752,901.78/81,517.76
  6. Step 6: Final answer
    x = 81,230.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.