Home / 84,538.47-126,816.15-31,244.45

Finding the Fourth Proportional to 84,538.47, 126,816.15 and 31,244.45

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Solution

The fourth proportional to 84,538.47, 126,816.15 and 31,244.45 is: 46,869.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,538.47 : 126,816.15 = 31,244.45 : x
  2. Step 2: Convert to fraction form
    84,538.47/126,816.15 = 31,244.45/x
  3. Step 3: Cross multiply
    84,538.47x = 126,816.15 × 31,244.45
  4. Step 4: Simplify right side
    84,538.47x = 3,962,300,223.79
  5. Step 5: Solve for x
    x = 3,962,300,223.79/84,538.47
  6. Step 6: Final answer
    x = 46,869.79

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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.