Home / 87,685.99-131,548.47-40,913.35

Finding the Fourth Proportional to 87,685.99, 131,548.47 and 40,913.35

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Solution

The fourth proportional to 87,685.99, 131,548.47 and 40,913.35 is: 61,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,685.99 : 131,548.47 = 40,913.35 : x
  2. Step 2: Convert to fraction form
    87,685.99/131,548.47 = 40,913.35/x
  3. Step 3: Cross multiply
    87,685.99x = 131,548.47 × 40,913.35
  4. Step 4: Simplify right side
    87,685.99x = 5,382,088,266.20
  5. Step 5: Solve for x
    x = 5,382,088,266.20/87,685.99
  6. Step 6: Final answer
    x = 61,379.11

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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.