Home / 83,508.16-115,240.44-45,782.32

Finding the Fourth Proportional to 83,508.16, 115,240.44 and 45,782.32

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Solution

The fourth proportional to 83,508.16, 115,240.44 and 45,782.32 is: 63,179.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,508.16 : 115,240.44 = 45,782.32 : x
  2. Step 2: Convert to fraction form
    83,508.16/115,240.44 = 45,782.32/x
  3. Step 3: Cross multiply
    83,508.16x = 115,240.44 × 45,782.32
  4. Step 4: Simplify right side
    83,508.16x = 5,275,974,701.02
  5. Step 5: Solve for x
    x = 5,275,974,701.02/83,508.16
  6. Step 6: Final answer
    x = 63,179.15

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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.