Home / 77,122.56-115,681.68-24,535.20

Finding the Fourth Proportional to 77,122.56, 115,681.68 and 24,535.20

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Solution

The fourth proportional to 77,122.56, 115,681.68 and 24,535.20 is: 36,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,122.56 : 115,681.68 = 24,535.20 : x
  2. Step 2: Convert to fraction form
    77,122.56/115,681.68 = 24,535.20/x
  3. Step 3: Cross multiply
    77,122.56x = 115,681.68 × 24,535.20
  4. Step 4: Simplify right side
    77,122.56x = 2,838,273,155.14
  5. Step 5: Solve for x
    x = 2,838,273,155.14/77,122.56
  6. Step 6: Final answer
    x = 36,802.11

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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.