Home / 83,410.16-115,114.30-47,605.58

Finding the Fourth Proportional to 83,410.16, 115,114.30 and 47,605.58

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Solution

The fourth proportional to 83,410.16, 115,114.30 and 47,605.58 is: 65,700.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,410.16 : 115,114.30 = 47,605.58 : x
  2. Step 2: Convert to fraction form
    83,410.16/115,114.30 = 47,605.58/x
  3. Step 3: Cross multiply
    83,410.16x = 115,114.30 × 47,605.58
  4. Step 4: Simplify right side
    83,410.16x = 5,480,083,017.79
  5. Step 5: Solve for x
    x = 5,480,083,017.79/83,410.16
  6. Step 6: Final answer
    x = 65,700.43

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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.