Home / 86,394.43-129,465.28-38,304.73

Finding the Fourth Proportional to 86,394.43, 129,465.28 and 38,304.73

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Solution

The fourth proportional to 86,394.43, 129,465.28 and 38,304.73 is: 57,401.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,394.43 : 129,465.28 = 38,304.73 : x
  2. Step 2: Convert to fraction form
    86,394.43/129,465.28 = 38,304.73/x
  3. Step 3: Cross multiply
    86,394.43x = 129,465.28 × 38,304.73
  4. Step 4: Simplify right side
    86,394.43x = 4,959,132,594.77
  5. Step 5: Solve for x
    x = 4,959,132,594.77/86,394.43
  6. Step 6: Final answer
    x = 57,401.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.