Home / 87,436.40-131,030.46-39,934.76

Finding the Fourth Proportional to 87,436.40, 131,030.46 and 39,934.76

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Solution

The fourth proportional to 87,436.40, 131,030.46 and 39,934.76 is: 59,845.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,436.40 : 131,030.46 = 39,934.76 : x
  2. Step 2: Convert to fraction form
    87,436.40/131,030.46 = 39,934.76/x
  3. Step 3: Cross multiply
    87,436.40x = 131,030.46 × 39,934.76
  4. Step 4: Simplify right side
    87,436.40x = 5,232,669,317.64
  5. Step 5: Solve for x
    x = 5,232,669,317.64/87,436.40
  6. Step 6: Final answer
    x = 59,845.44

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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.