Home / 83,389.20-115,077.18-45,148.77

Finding the Fourth Proportional to 83,389.20, 115,077.18 and 45,148.77

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Solution

The fourth proportional to 83,389.20, 115,077.18 and 45,148.77 is: 62,305.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,389.20 : 115,077.18 = 45,148.77 : x
  2. Step 2: Convert to fraction form
    83,389.20/115,077.18 = 45,148.77/x
  3. Step 3: Cross multiply
    83,389.20x = 115,077.18 × 45,148.77
  4. Step 4: Simplify right side
    83,389.20x = 5,195,593,132.07
  5. Step 5: Solve for x
    x = 5,195,593,132.07/83,389.20
  6. Step 6: Final answer
    x = 62,305.35

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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.