Home / 83,416.52-115,116.48-45,690.80

Finding the Fourth Proportional to 83,416.52, 115,116.48 and 45,690.80

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Solution

The fourth proportional to 83,416.52, 115,116.48 and 45,690.80 is: 63,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,416.52 : 115,116.48 = 45,690.80 : x
  2. Step 2: Convert to fraction form
    83,416.52/115,116.48 = 45,690.80/x
  3. Step 3: Cross multiply
    83,416.52x = 115,116.48 × 45,690.80
  4. Step 4: Simplify right side
    83,416.52x = 5,259,764,064.38
  5. Step 5: Solve for x
    x = 5,259,764,064.38/83,416.52
  6. Step 6: Final answer
    x = 63,054.23

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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.