Home / 83,555.98-115,313.60-47,747.50

Finding the Fourth Proportional to 83,555.98, 115,313.60 and 47,747.50

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Solution

The fourth proportional to 83,555.98, 115,313.60 and 47,747.50 is: 65,895.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,555.98 : 115,313.60 = 47,747.50 : x
  2. Step 2: Convert to fraction form
    83,555.98/115,313.60 = 47,747.50/x
  3. Step 3: Cross multiply
    83,555.98x = 115,313.60 × 47,747.50
  4. Step 4: Simplify right side
    83,555.98x = 5,505,935,947.08
  5. Step 5: Solve for x
    x = 5,505,935,947.08/83,555.98
  6. Step 6: Final answer
    x = 65,895.18

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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.