Home / 83,685.62-115,485.68-45,444.80

Finding the Fourth Proportional to 83,685.62, 115,485.68 and 45,444.80

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Solution

The fourth proportional to 83,685.62, 115,485.68 and 45,444.80 is: 62,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,685.62 : 115,485.68 = 45,444.80 : x
  2. Step 2: Convert to fraction form
    83,685.62/115,485.68 = 45,444.80/x
  3. Step 3: Cross multiply
    83,685.62x = 115,485.68 × 45,444.80
  4. Step 4: Simplify right side
    83,685.62x = 5,248,223,166.65
  5. Step 5: Solve for x
    x = 5,248,223,166.65/83,685.62
  6. Step 6: Final answer
    x = 62,713.56

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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.