Home / 85,524.79-117,947.28-55,278.31

Finding the Fourth Proportional to 85,524.79, 117,947.28 and 55,278.31

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Solution

The fourth proportional to 85,524.79, 117,947.28 and 55,278.31 is: 76,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,524.79 : 117,947.28 = 55,278.31 : x
  2. Step 2: Convert to fraction form
    85,524.79/117,947.28 = 55,278.31/x
  3. Step 3: Cross multiply
    85,524.79x = 117,947.28 × 55,278.31
  4. Step 4: Simplify right side
    85,524.79x = 6,519,926,307.50
  5. Step 5: Solve for x
    x = 6,519,926,307.50/85,524.79
  6. Step 6: Final answer
    x = 76,234.34

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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.