Home / 83,410.17-115,108.26-47,108.70

Finding the Fourth Proportional to 83,410.17, 115,108.26 and 47,108.70

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Solution

The fourth proportional to 83,410.17, 115,108.26 and 47,108.70 is: 65,011.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,410.17 : 115,108.26 = 47,108.70 : x
  2. Step 2: Convert to fraction form
    83,410.17/115,108.26 = 47,108.70/x
  3. Step 3: Cross multiply
    83,410.17x = 115,108.26 × 47,108.70
  4. Step 4: Simplify right side
    83,410.17x = 5,422,600,870.56
  5. Step 5: Solve for x
    x = 5,422,600,870.56/83,410.17
  6. Step 6: Final answer
    x = 65,011.27

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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.