Home / 87,680.40-131,574.60-37,784.40

Finding the Fourth Proportional to 87,680.40, 131,574.60 and 37,784.40

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Solution

The fourth proportional to 87,680.40, 131,574.60 and 37,784.40 is: 56,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680.40 : 131,574.60 = 37,784.40 : x
  2. Step 2: Convert to fraction form
    87,680.40/131,574.60 = 37,784.40/x
  3. Step 3: Cross multiply
    87,680.40x = 131,574.60 × 37,784.40
  4. Step 4: Simplify right side
    87,680.40x = 4,971,467,316.24
  5. Step 5: Solve for x
    x = 4,971,467,316.24/87,680.40
  6. Step 6: Final answer
    x = 56,699.87

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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.