Home / 81,264.64-112,144.40-45,454.24

Finding the Fourth Proportional to 81,264.64, 112,144.40 and 45,454.24

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Solution

The fourth proportional to 81,264.64, 112,144.40 and 45,454.24 is: 62,726.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,264.64 : 112,144.40 = 45,454.24 : x
  2. Step 2: Convert to fraction form
    81,264.64/112,144.40 = 45,454.24/x
  3. Step 3: Cross multiply
    81,264.64x = 112,144.40 × 45,454.24
  4. Step 4: Simplify right side
    81,264.64x = 5,097,438,472.26
  5. Step 5: Solve for x
    x = 5,097,438,472.26/81,264.64
  6. Step 6: Final answer
    x = 62,726.40

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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.