Home / 81,260.88-112,145.52-45,454.20

Finding the Fourth Proportional to 81,260.88, 112,145.52 and 45,454.20

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Solution

The fourth proportional to 81,260.88, 112,145.52 and 45,454.20 is: 62,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,260.88 : 112,145.52 = 45,454.20 : x
  2. Step 2: Convert to fraction form
    81,260.88/112,145.52 = 45,454.20/x
  3. Step 3: Cross multiply
    81,260.88x = 112,145.52 × 45,454.20
  4. Step 4: Simplify right side
    81,260.88x = 5,097,484,895.18
  5. Step 5: Solve for x
    x = 5,097,484,895.18/81,260.88
  6. Step 6: Final answer
    x = 62,729.88

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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.