Home / 83,648.03-115,435.12-45,407.88

Finding the Fourth Proportional to 83,648.03, 115,435.12 and 45,407.88

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Solution

The fourth proportional to 83,648.03, 115,435.12 and 45,407.88 is: 62,663.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,648.03 : 115,435.12 = 45,407.88 : x
  2. Step 2: Convert to fraction form
    83,648.03/115,435.12 = 45,407.88/x
  3. Step 3: Cross multiply
    83,648.03x = 115,435.12 × 45,407.88
  4. Step 4: Simplify right side
    83,648.03x = 5,241,663,854.11
  5. Step 5: Solve for x
    x = 5,241,663,854.11/83,648.03
  6. Step 6: Final answer
    x = 62,663.33

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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.