Home / 85,525.29-117,947.97-55,278.81

Finding the Fourth Proportional to 85,525.29, 117,947.97 and 55,278.81

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Solution

The fourth proportional to 85,525.29, 117,947.97 and 55,278.81 is: 76,235.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,525.29 : 117,947.97 = 55,278.81 : x
  2. Step 2: Convert to fraction form
    85,525.29/117,947.97 = 55,278.81/x
  3. Step 3: Cross multiply
    85,525.29x = 117,947.97 × 55,278.81
  4. Step 4: Simplify right side
    85,525.29x = 6,520,023,423.52
  5. Step 5: Solve for x
    x = 6,520,023,423.52/85,525.29
  6. Step 6: Final answer
    x = 76,235.03

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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.