Home / 102,424.57-153,659.41-31,347.75

Finding the Fourth Proportional to 102,424.57, 153,659.41 and 31,347.75

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Solution

The fourth proportional to 102,424.57, 153,659.41 and 31,347.75 is: 47,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,424.57 : 153,659.41 = 31,347.75 : x
  2. Step 2: Convert to fraction form
    102,424.57/153,659.41 = 31,347.75/x
  3. Step 3: Cross multiply
    102,424.57x = 153,659.41 × 31,347.75
  4. Step 4: Simplify right side
    102,424.57x = 4,816,876,769.83
  5. Step 5: Solve for x
    x = 4,816,876,769.83/102,424.57
  6. Step 6: Final answer
    x = 47,028.53

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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.