Home / 83,156.40-114,755.76-45,430.64

Finding the Fourth Proportional to 83,156.40, 114,755.76 and 45,430.64

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Solution

The fourth proportional to 83,156.40, 114,755.76 and 45,430.64 is: 62,694.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,156.40 : 114,755.76 = 45,430.64 : x
  2. Step 2: Convert to fraction form
    83,156.40/114,755.76 = 45,430.64/x
  3. Step 3: Cross multiply
    83,156.40x = 114,755.76 × 45,430.64
  4. Step 4: Simplify right side
    83,156.40x = 5,213,427,620.49
  5. Step 5: Solve for x
    x = 5,213,427,620.49/83,156.40
  6. Step 6: Final answer
    x = 62,694.24

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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.