Home / 90,840.56-125,362.68-55,037.12

Finding the Fourth Proportional to 90,840.56, 125,362.68 and 55,037.12

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Solution

The fourth proportional to 90,840.56, 125,362.68 and 55,037.12 is: 75,952.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,840.56 : 125,362.68 = 55,037.12 : x
  2. Step 2: Convert to fraction form
    90,840.56/125,362.68 = 55,037.12/x
  3. Step 3: Cross multiply
    90,840.56x = 125,362.68 × 55,037.12
  4. Step 4: Simplify right side
    90,840.56x = 6,899,600,862.68
  5. Step 5: Solve for x
    x = 6,899,600,862.68/90,840.56
  6. Step 6: Final answer
    x = 75,952.87

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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.