Home / 81,425.90-112,374.65-45,615.42

Finding the Fourth Proportional to 81,425.90, 112,374.65 and 45,615.42

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Solution

The fourth proportional to 81,425.90, 112,374.65 and 45,615.42 is: 62,953.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,425.90 : 112,374.65 = 45,615.42 : x
  2. Step 2: Convert to fraction form
    81,425.90/112,374.65 = 45,615.42/x
  3. Step 3: Cross multiply
    81,425.90x = 112,374.65 × 45,615.42
  4. Step 4: Simplify right side
    81,425.90x = 5,126,016,857.10
  5. Step 5: Solve for x
    x = 5,126,016,857.10/81,425.90
  6. Step 6: Final answer
    x = 62,953.15

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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.