Home / 85,432.86-117,889.29-49,621.95

Finding the Fourth Proportional to 85,432.86, 117,889.29 and 49,621.95

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Solution

The fourth proportional to 85,432.86, 117,889.29 and 49,621.95 is: 68,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,432.86 : 117,889.29 = 49,621.95 : x
  2. Step 2: Convert to fraction form
    85,432.86/117,889.29 = 49,621.95/x
  3. Step 3: Cross multiply
    85,432.86x = 117,889.29 × 49,621.95
  4. Step 4: Simplify right side
    85,432.86x = 5,849,896,453.92
  5. Step 5: Solve for x
    x = 5,849,896,453.92/85,432.86
  6. Step 6: Final answer
    x = 68,473.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.