Home / 77,948.46-116,940-36,372.78

Finding the Fourth Proportional to 77,948.46, 116,940 and 36,372.78

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Solution

The fourth proportional to 77,948.46, 116,940 and 36,372.78 is: 54,567.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,948.46 : 116,940 = 36,372.78 : x
  2. Step 2: Convert to fraction form
    77,948.46/116,940 = 36,372.78/x
  3. Step 3: Cross multiply
    77,948.46x = 116,940 × 36,372.78
  4. Step 4: Simplify right side
    77,948.46x = 4,253,432,893.20
  5. Step 5: Solve for x
    x = 4,253,432,893.20/77,948.46
  6. Step 6: Final answer
    x = 54,567.25

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1.5x scale

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.