Home / 84,850.40-117,041.20-54,625.76

Finding the Fourth Proportional to 84,850.40, 117,041.20 and 54,625.76

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Solution

The fourth proportional to 84,850.40, 117,041.20 and 54,625.76 is: 75,349.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,850.40 : 117,041.20 = 54,625.76 : x
  2. Step 2: Convert to fraction form
    84,850.40/117,041.20 = 54,625.76/x
  3. Step 3: Cross multiply
    84,850.40x = 117,041.20 × 54,625.76
  4. Step 4: Simplify right side
    84,850.40x = 6,393,464,501.31
  5. Step 5: Solve for x
    x = 6,393,464,501.31/84,850.40
  6. Step 6: Final answer
    x = 75,349.85

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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.