Home / 85,437.91-117,895.53-49,635.46

Finding the Fourth Proportional to 85,437.91, 117,895.53 and 49,635.46

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Solution

The fourth proportional to 85,437.91, 117,895.53 and 49,635.46 is: 68,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,437.91 : 117,895.53 = 49,635.46 : x
  2. Step 2: Convert to fraction form
    85,437.91/117,895.53 = 49,635.46/x
  3. Step 3: Cross multiply
    85,437.91x = 117,895.53 × 49,635.46
  4. Step 4: Simplify right side
    85,437.91x = 5,851,798,863.49
  5. Step 5: Solve for x
    x = 5,851,798,863.49/85,437.91
  6. Step 6: Final answer
    x = 68,491.83

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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.