Home / 103,642.48-155,478.30-51,052.42

Finding the Fourth Proportional to 103,642.48, 155,478.30 and 51,052.42

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Solution

The fourth proportional to 103,642.48, 155,478.30 and 51,052.42 is: 76,585.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,642.48 : 155,478.30 = 51,052.42 : x
  2. Step 2: Convert to fraction form
    103,642.48/155,478.30 = 51,052.42/x
  3. Step 3: Cross multiply
    103,642.48x = 155,478.30 × 51,052.42
  4. Step 4: Simplify right side
    103,642.48x = 7,937,543,472.49
  5. Step 5: Solve for x
    x = 7,937,543,472.49/103,642.48
  6. Step 6: Final answer
    x = 76,585.81

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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.