Home / 83,830.23-115,657.38-47,527.78

Finding the Fourth Proportional to 83,830.23, 115,657.38 and 47,527.78

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Solution

The fourth proportional to 83,830.23, 115,657.38 and 47,527.78 is: 65,572.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,830.23 : 115,657.38 = 47,527.78 : x
  2. Step 2: Convert to fraction form
    83,830.23/115,657.38 = 47,527.78/x
  3. Step 3: Cross multiply
    83,830.23x = 115,657.38 × 47,527.78
  4. Step 4: Simplify right side
    83,830.23x = 5,496,938,512.02
  5. Step 5: Solve for x
    x = 5,496,938,512.02/83,830.23
  6. Step 6: Final answer
    x = 65,572.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.