Home / 81,532.63-112,516.15-49,262.74

Finding the Fourth Proportional to 81,532.63, 112,516.15 and 49,262.74

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Solution

The fourth proportional to 81,532.63, 112,516.15 and 49,262.74 is: 67,983.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,532.63 : 112,516.15 = 49,262.74 : x
  2. Step 2: Convert to fraction form
    81,532.63/112,516.15 = 49,262.74/x
  3. Step 3: Cross multiply
    81,532.63x = 112,516.15 × 49,262.74
  4. Step 4: Simplify right side
    81,532.63x = 5,542,853,438.80
  5. Step 5: Solve for x
    x = 5,542,853,438.80/81,532.63
  6. Step 6: Final answer
    x = 67,983.26

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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.