Home / 81,326.57-112,230.64-45,516.58

Finding the Fourth Proportional to 81,326.57, 112,230.64 and 45,516.58

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Solution

The fourth proportional to 81,326.57, 112,230.64 and 45,516.58 is: 62,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,326.57 : 112,230.64 = 45,516.58 : x
  2. Step 2: Convert to fraction form
    81,326.57/112,230.64 = 45,516.58/x
  3. Step 3: Cross multiply
    81,326.57x = 112,230.64 × 45,516.58
  4. Step 4: Simplify right side
    81,326.57x = 5,108,354,904.01
  5. Step 5: Solve for x
    x = 5,108,354,904.01/81,326.57
  6. Step 6: Final answer
    x = 62,812.87

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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.