Home / 81,417.42-112,357.22-47,425.04

Finding the Fourth Proportional to 81,417.42, 112,357.22 and 47,425.04

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Solution

The fourth proportional to 81,417.42, 112,357.22 and 47,425.04 is: 65,447.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,417.42 : 112,357.22 = 47,425.04 : x
  2. Step 2: Convert to fraction form
    81,417.42/112,357.22 = 47,425.04/x
  3. Step 3: Cross multiply
    81,417.42x = 112,357.22 × 47,425.04
  4. Step 4: Simplify right side
    81,417.42x = 5,328,545,652.79
  5. Step 5: Solve for x
    x = 5,328,545,652.79/81,417.42
  6. Step 6: Final answer
    x = 65,447.24

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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.