Home / 52,221.12-78,358.68-25,925.28

Finding the Fourth Proportional to 52,221.12, 78,358.68 and 25,925.28

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Solution

The fourth proportional to 52,221.12, 78,358.68 and 25,925.28 is: 38,901.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,221.12 : 78,358.68 = 25,925.28 : x
  2. Step 2: Convert to fraction form
    52,221.12/78,358.68 = 25,925.28/x
  3. Step 3: Cross multiply
    52,221.12x = 78,358.68 × 25,925.28
  4. Step 4: Simplify right side
    52,221.12x = 2,031,470,719.43
  5. Step 5: Solve for x
    x = 2,031,470,719.43/52,221.12
  6. Step 6: Final answer
    x = 38,901.32

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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.