Home / 83,447.10-115,156.23-45,205.77

Finding the Fourth Proportional to 83,447.10, 115,156.23 and 45,205.77

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Solution

The fourth proportional to 83,447.10, 115,156.23 and 45,205.77 is: 62,383.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,447.10 : 115,156.23 = 45,205.77 : x
  2. Step 2: Convert to fraction form
    83,447.10/115,156.23 = 45,205.77/x
  3. Step 3: Cross multiply
    83,447.10x = 115,156.23 × 45,205.77
  4. Step 4: Simplify right side
    83,447.10x = 5,205,726,047.45
  5. Step 5: Solve for x
    x = 5,205,726,047.45/83,447.10
  6. Step 6: Final answer
    x = 62,383.55

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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.