Home / 81,537.22-112,522.51-49,267.36

Finding the Fourth Proportional to 81,537.22, 112,522.51 and 49,267.36

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Solution

The fourth proportional to 81,537.22, 112,522.51 and 49,267.36 is: 67,989.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,537.22 : 112,522.51 = 49,267.36 : x
  2. Step 2: Convert to fraction form
    81,537.22/112,522.51 = 49,267.36/x
  3. Step 3: Cross multiply
    81,537.22x = 112,522.51 × 49,267.36
  4. Step 4: Simplify right side
    81,537.22x = 5,543,687,008.27
  5. Step 5: Solve for x
    x = 5,543,687,008.27/81,537.22
  6. Step 6: Final answer
    x = 67,989.65

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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.