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Finding the Fourth Proportional to 68,155.31, 94,133.07 and 45,454.85

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Solution

The fourth proportional to 68,155.31, 94,133.07 and 45,454.85 is: 62,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,155.31 : 94,133.07 = 45,454.85 : x
  2. Step 2: Convert to fraction form
    68,155.31/94,133.07 = 45,454.85/x
  3. Step 3: Cross multiply
    68,155.31x = 94,133.07 × 45,454.85
  4. Step 4: Simplify right side
    68,155.31x = 4,278,804,459.22
  5. Step 5: Solve for x
    x = 4,278,804,459.22/68,155.31
  6. Step 6: Final answer
    x = 62,780.20

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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.