Home / 81,423.46-112,367.55-45,613.77

Finding the Fourth Proportional to 81,423.46, 112,367.55 and 45,613.77

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Solution

The fourth proportional to 81,423.46, 112,367.55 and 45,613.77 is: 62,948.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,423.46 : 112,367.55 = 45,613.77 : x
  2. Step 2: Convert to fraction form
    81,423.46/112,367.55 = 45,613.77/x
  3. Step 3: Cross multiply
    81,423.46x = 112,367.55 × 45,613.77
  4. Step 4: Simplify right side
    81,423.46x = 5,125,507,330.84
  5. Step 5: Solve for x
    x = 5,125,507,330.84/81,423.46
  6. Step 6: Final answer
    x = 62,948.78

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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.