Home / 81,655.43-112,685.58-45,843.30

Finding the Fourth Proportional to 81,655.43, 112,685.58 and 45,843.30

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Solution

The fourth proportional to 81,655.43, 112,685.58 and 45,843.30 is: 63,264.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,655.43 : 112,685.58 = 45,843.30 : x
  2. Step 2: Convert to fraction form
    81,655.43/112,685.58 = 45,843.30/x
  3. Step 3: Cross multiply
    81,655.43x = 112,685.58 × 45,843.30
  4. Step 4: Simplify right side
    81,655.43x = 5,165,878,849.61
  5. Step 5: Solve for x
    x = 5,165,878,849.61/81,655.43
  6. Step 6: Final answer
    x = 63,264.37

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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.