Home / 81,755.52-112,799.36-45,941.76

Finding the Fourth Proportional to 81,755.52, 112,799.36 and 45,941.76

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Solution

The fourth proportional to 81,755.52, 112,799.36 and 45,941.76 is: 63,386.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,755.52 : 112,799.36 = 45,941.76 : x
  2. Step 2: Convert to fraction form
    81,755.52/112,799.36 = 45,941.76/x
  3. Step 3: Cross multiply
    81,755.52x = 112,799.36 × 45,941.76
  4. Step 4: Simplify right side
    81,755.52x = 5,182,201,125.27
  5. Step 5: Solve for x
    x = 5,182,201,125.27/81,755.52
  6. Step 6: Final answer
    x = 63,386.56

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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.