Home / 81,252.43-112,134.08-45,445.77

Finding the Fourth Proportional to 81,252.43, 112,134.08 and 45,445.77

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Solution

The fourth proportional to 81,252.43, 112,134.08 and 45,445.77 is: 62,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,252.43 : 112,134.08 = 45,445.77 : x
  2. Step 2: Convert to fraction form
    81,252.43/112,134.08 = 45,445.77/x
  3. Step 3: Cross multiply
    81,252.43x = 112,134.08 × 45,445.77
  4. Step 4: Simplify right side
    81,252.43x = 5,096,019,722.46
  5. Step 5: Solve for x
    x = 5,096,019,722.46/81,252.43
  6. Step 6: Final answer
    x = 62,718.37

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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.