Home / 81,589.40-112,594.30-47,596.76

Finding the Fourth Proportional to 81,589.40, 112,594.30 and 47,596.76

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Solution

The fourth proportional to 81,589.40, 112,594.30 and 47,596.76 is: 65,684.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,589.40 : 112,594.30 = 47,596.76 : x
  2. Step 2: Convert to fraction form
    81,589.40/112,594.30 = 47,596.76/x
  3. Step 3: Cross multiply
    81,589.40x = 112,594.30 × 47,596.76
  4. Step 4: Simplify right side
    81,589.40x = 5,359,123,874.47
  5. Step 5: Solve for x
    x = 5,359,123,874.47/81,589.40
  6. Step 6: Final answer
    x = 65,684.07

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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.