Home / 87,685.23-131,547.34-40,912.59

Finding the Fourth Proportional to 87,685.23, 131,547.34 and 40,912.59

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Solution

The fourth proportional to 87,685.23, 131,547.34 and 40,912.59 is: 61,377.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,685.23 : 131,547.34 = 40,912.59 : x
  2. Step 2: Convert to fraction form
    87,685.23/131,547.34 = 40,912.59/x
  3. Step 3: Cross multiply
    87,685.23x = 131,547.34 × 40,912.59
  4. Step 4: Simplify right side
    87,685.23x = 5,381,942,931.45
  5. Step 5: Solve for x
    x = 5,381,942,931.45/87,685.23
  6. Step 6: Final answer
    x = 61,377.98

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1.5x scale

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.