Home / 81,455.04-112,303.17-52,723.80

Finding the Fourth Proportional to 81,455.04, 112,303.17 and 52,723.80

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Solution

The fourth proportional to 81,455.04, 112,303.17 and 52,723.80 is: 72,691.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,455.04 : 112,303.17 = 52,723.80 : x
  2. Step 2: Convert to fraction form
    81,455.04/112,303.17 = 52,723.80/x
  3. Step 3: Cross multiply
    81,455.04x = 112,303.17 × 52,723.80
  4. Step 4: Simplify right side
    81,455.04x = 5,921,049,874.45
  5. Step 5: Solve for x
    x = 5,921,049,874.45/81,455.04
  6. Step 6: Final answer
    x = 72,691.02

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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.