Home / 83,399.65-115,091.55-45,159.21

Finding the Fourth Proportional to 83,399.65, 115,091.55 and 45,159.21

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Solution

The fourth proportional to 83,399.65, 115,091.55 and 45,159.21 is: 62,319.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,399.65 : 115,091.55 = 45,159.21 : x
  2. Step 2: Convert to fraction form
    83,399.65/115,091.55 = 45,159.21/x
  3. Step 3: Cross multiply
    83,399.65x = 115,091.55 × 45,159.21
  4. Step 4: Simplify right side
    83,399.65x = 5,197,443,588.57
  5. Step 5: Solve for x
    x = 5,197,443,588.57/83,399.65
  6. Step 6: Final answer
    x = 62,319.73

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1.5x scale

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.