Home / 91,219.05-125,884.40-57,228.93

Finding the Fourth Proportional to 91,219.05, 125,884.40 and 57,228.93

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Solution

The fourth proportional to 91,219.05, 125,884.40 and 57,228.93 is: 78,977.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,219.05 : 125,884.40 = 57,228.93 : x
  2. Step 2: Convert to fraction form
    91,219.05/125,884.40 = 57,228.93/x
  3. Step 3: Cross multiply
    91,219.05x = 125,884.40 × 57,228.93
  4. Step 4: Simplify right side
    91,219.05x = 7,204,229,229.55
  5. Step 5: Solve for x
    x = 7,204,229,229.55/91,219.05
  6. Step 6: Final answer
    x = 78,977.24

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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.