Home / 81,551.04-112,435.20-54,697.92

Finding the Fourth Proportional to 81,551.04, 112,435.20 and 54,697.92

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Solution

The fourth proportional to 81,551.04, 112,435.20 and 54,697.92 is: 75,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,551.04 : 112,435.20 = 54,697.92 : x
  2. Step 2: Convert to fraction form
    81,551.04/112,435.20 = 54,697.92/x
  3. Step 3: Cross multiply
    81,551.04x = 112,435.20 × 54,697.92
  4. Step 4: Simplify right side
    81,551.04x = 6,149,971,574.78
  5. Step 5: Solve for x
    x = 6,149,971,574.78/81,551.04
  6. Step 6: Final answer
    x = 75,412.55

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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.