Home / 61,731.41-85,111.91-50,389.38

Finding the Fourth Proportional to 61,731.41, 85,111.91 and 50,389.38

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Solution

The fourth proportional to 61,731.41, 85,111.91 and 50,389.38 is: 69,474.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,731.41 : 85,111.91 = 50,389.38 : x
  2. Step 2: Convert to fraction form
    61,731.41/85,111.91 = 50,389.38/x
  3. Step 3: Cross multiply
    61,731.41x = 85,111.91 × 50,389.38
  4. Step 4: Simplify right side
    61,731.41x = 4,288,736,123.57
  5. Step 5: Solve for x
    x = 4,288,736,123.57/61,731.41
  6. Step 6: Final answer
    x = 69,474.14

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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.