Home / 88,719.87-133,077.57-36,129.21

Finding the Fourth Proportional to 88,719.87, 133,077.57 and 36,129.21

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Solution

The fourth proportional to 88,719.87, 133,077.57 and 36,129.21 is: 54,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,719.87 : 133,077.57 = 36,129.21 : x
  2. Step 2: Convert to fraction form
    88,719.87/133,077.57 = 36,129.21/x
  3. Step 3: Cross multiply
    88,719.87x = 133,077.57 × 36,129.21
  4. Step 4: Simplify right side
    88,719.87x = 4,807,987,472.82
  5. Step 5: Solve for x
    x = 4,807,987,472.82/88,719.87
  6. Step 6: Final answer
    x = 54,192.90

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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.