Home / 113,890.92-170,717.50-38,989

Finding the Fourth Proportional to 113,890.92, 170,717.50 and 38,989

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Solution

The fourth proportional to 113,890.92, 170,717.50 and 38,989 is: 58,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,890.92 : 170,717.50 = 38,989 : x
  2. Step 2: Convert to fraction form
    113,890.92/170,717.50 = 38,989/x
  3. Step 3: Cross multiply
    113,890.92x = 170,717.50 × 38,989
  4. Step 4: Simplify right side
    113,890.92x = 6,656,104,607.50
  5. Step 5: Solve for x
    x = 6,656,104,607.50/113,890.92
  6. Step 6: Final answer
    x = 58,442.80

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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.