Home / 56,866.95-85,231.20-40,231.80

Finding the Fourth Proportional to 56,866.95, 85,231.20 and 40,231.80

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Solution

The fourth proportional to 56,866.95, 85,231.20 and 40,231.80 is: 60,298.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,866.95 : 85,231.20 = 40,231.80 : x
  2. Step 2: Convert to fraction form
    56,866.95/85,231.20 = 40,231.80/x
  3. Step 3: Cross multiply
    56,866.95x = 85,231.20 × 40,231.80
  4. Step 4: Simplify right side
    56,866.95x = 3,429,004,592.16
  5. Step 5: Solve for x
    x = 3,429,004,592.16/56,866.95
  6. Step 6: Final answer
    x = 60,298.73

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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.