Home / 83,592.27-125,386.38-20,412.81

Finding the Fourth Proportional to 83,592.27, 125,386.38 and 20,412.81

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Solution

The fourth proportional to 83,592.27, 125,386.38 and 20,412.81 is: 30,618.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,592.27 : 125,386.38 = 20,412.81 : x
  2. Step 2: Convert to fraction form
    83,592.27/125,386.38 = 20,412.81/x
  3. Step 3: Cross multiply
    83,592.27x = 125,386.38 × 20,412.81
  4. Step 4: Simplify right side
    83,592.27x = 2,559,488,351.53
  5. Step 5: Solve for x
    x = 2,559,488,351.53/83,592.27
  6. Step 6: Final answer
    x = 30,618.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.