Home / 83,648.12-115,434.60-45,924.80

Finding the Fourth Proportional to 83,648.12, 115,434.60 and 45,924.80

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Solution

The fourth proportional to 83,648.12, 115,434.60 and 45,924.80 is: 63,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,648.12 : 115,434.60 = 45,924.80 : x
  2. Step 2: Convert to fraction form
    83,648.12/115,434.60 = 45,924.80/x
  3. Step 3: Cross multiply
    83,648.12x = 115,434.60 × 45,924.80
  4. Step 4: Simplify right side
    83,648.12x = 5,301,310,918.08
  5. Step 5: Solve for x
    x = 5,301,310,918.08/83,648.12
  6. Step 6: Final answer
    x = 63,376.33

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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.