Home / 85,604.13-118,142.54-49,306.78

Finding the Fourth Proportional to 85,604.13, 118,142.54 and 49,306.78

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Solution

The fourth proportional to 85,604.13, 118,142.54 and 49,306.78 is: 68,048.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,604.13 : 118,142.54 = 49,306.78 : x
  2. Step 2: Convert to fraction form
    85,604.13/118,142.54 = 49,306.78/x
  3. Step 3: Cross multiply
    85,604.13x = 118,142.54 × 49,306.78
  4. Step 4: Simplify right side
    85,604.13x = 5,825,228,228.42
  5. Step 5: Solve for x
    x = 5,825,228,228.42/85,604.13
  6. Step 6: Final answer
    x = 68,048.45

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1.5x scale

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.