Home / 56,878.20-85,316.49-25,713.45

Finding the Fourth Proportional to 56,878.20, 85,316.49 and 25,713.45

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Solution

The fourth proportional to 56,878.20, 85,316.49 and 25,713.45 is: 38,569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,878.20 : 85,316.49 = 25,713.45 : x
  2. Step 2: Convert to fraction form
    56,878.20/85,316.49 = 25,713.45/x
  3. Step 3: Cross multiply
    56,878.20x = 85,316.49 × 25,713.45
  4. Step 4: Simplify right side
    56,878.20x = 2,193,781,299.79
  5. Step 5: Solve for x
    x = 2,193,781,299.79/56,878.20
  6. Step 6: Final answer
    x = 38,569.81

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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.