Home / 83,806.25-115,751.63-64,549.31

Finding the Fourth Proportional to 83,806.25, 115,751.63 and 64,549.31

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Solution

The fourth proportional to 83,806.25, 115,751.63 and 64,549.31 is: 89,154.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,806.25 : 115,751.63 = 64,549.31 : x
  2. Step 2: Convert to fraction form
    83,806.25/115,751.63 = 64,549.31/x
  3. Step 3: Cross multiply
    83,806.25x = 115,751.63 × 64,549.31
  4. Step 4: Simplify right side
    83,806.25x = 7,471,687,430.49
  5. Step 5: Solve for x
    x = 7,471,687,430.49/83,806.25
  6. Step 6: Final answer
    x = 89,154.30

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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.