Home / 81,475.43-112,225.77-57,560.58

Finding the Fourth Proportional to 81,475.43, 112,225.77 and 57,560.58

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Solution

The fourth proportional to 81,475.43, 112,225.77 and 57,560.58 is: 79,285.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,475.43 : 112,225.77 = 57,560.58 : x
  2. Step 2: Convert to fraction form
    81,475.43/112,225.77 = 57,560.58/x
  3. Step 3: Cross multiply
    81,475.43x = 112,225.77 × 57,560.58
  4. Step 4: Simplify right side
    81,475.43x = 6,459,780,412.15
  5. Step 5: Solve for x
    x = 6,459,780,412.15/81,475.43
  6. Step 6: Final answer
    x = 79,285.02

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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.