Home / 83,356.20-115,003.08-47,520.36

Finding the Fourth Proportional to 83,356.20, 115,003.08 and 47,520.36

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Solution

The fourth proportional to 83,356.20, 115,003.08 and 47,520.36 is: 65,561.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,356.20 : 115,003.08 = 47,520.36 : x
  2. Step 2: Convert to fraction form
    83,356.20/115,003.08 = 47,520.36/x
  3. Step 3: Cross multiply
    83,356.20x = 115,003.08 × 47,520.36
  4. Step 4: Simplify right side
    83,356.20x = 5,464,987,762.71
  5. Step 5: Solve for x
    x = 5,464,987,762.71/83,356.20
  6. Step 6: Final answer
    x = 65,561.86

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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.