Home / 84,211.47-126,280.24-31,584.06

Finding the Fourth Proportional to 84,211.47, 126,280.24 and 31,584.06

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Solution

The fourth proportional to 84,211.47, 126,280.24 and 31,584.06 is: 47,362.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,211.47 : 126,280.24 = 31,584.06 : x
  2. Step 2: Convert to fraction form
    84,211.47/126,280.24 = 31,584.06/x
  3. Step 3: Cross multiply
    84,211.47x = 126,280.24 × 31,584.06
  4. Step 4: Simplify right side
    84,211.47x = 3,988,442,598.01
  5. Step 5: Solve for x
    x = 3,988,442,598.01/84,211.47
  6. Step 6: Final answer
    x = 47,362.23

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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.