Home / 83,648.79-125,440.50-30,328.11

Finding the Fourth Proportional to 83,648.79, 125,440.50 and 30,328.11

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Solution

The fourth proportional to 83,648.79, 125,440.50 and 30,328.11 is: 45,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,648.79 : 125,440.50 = 30,328.11 : x
  2. Step 2: Convert to fraction form
    83,648.79/125,440.50 = 30,328.11/x
  3. Step 3: Cross multiply
    83,648.79x = 125,440.50 × 30,328.11
  4. Step 4: Simplify right side
    83,648.79x = 3,804,373,282.46
  5. Step 5: Solve for x
    x = 3,804,373,282.46/83,648.79
  6. Step 6: Final answer
    x = 45,480.31

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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.