Home / 87,703.64-131,574.90-40,931

Finding the Fourth Proportional to 87,703.64, 131,574.90 and 40,931

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Solution

The fourth proportional to 87,703.64, 131,574.90 and 40,931 is: 61,405.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,703.64 : 131,574.90 = 40,931 : x
  2. Step 2: Convert to fraction form
    87,703.64/131,574.90 = 40,931/x
  3. Step 3: Cross multiply
    87,703.64x = 131,574.90 × 40,931
  4. Step 4: Simplify right side
    87,703.64x = 5,385,492,231.90
  5. Step 5: Solve for x
    x = 5,385,492,231.90/87,703.64
  6. Step 6: Final answer
    x = 61,405.57

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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.