Home / 81,544.04-112,425.54-54,690.92

Finding the Fourth Proportional to 81,544.04, 112,425.54 and 54,690.92

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Solution

The fourth proportional to 81,544.04, 112,425.54 and 54,690.92 is: 75,402.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,544.04 : 112,425.54 = 54,690.92 : x
  2. Step 2: Convert to fraction form
    81,544.04/112,425.54 = 54,690.92/x
  3. Step 3: Cross multiply
    81,544.04x = 112,425.54 × 54,690.92
  4. Step 4: Simplify right side
    81,544.04x = 6,148,656,214.10
  5. Step 5: Solve for x
    x = 6,148,656,214.10/81,544.04
  6. Step 6: Final answer
    x = 75,402.89

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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.