Home / 90,029.75-134,972.24-61,866.35

Finding the Fourth Proportional to 90,029.75, 134,972.24 and 61,866.35

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Solution

The fourth proportional to 90,029.75, 134,972.24 and 61,866.35 is: 92,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,029.75 : 134,972.24 = 61,866.35 : x
  2. Step 2: Convert to fraction form
    90,029.75/134,972.24 = 61,866.35/x
  3. Step 3: Cross multiply
    90,029.75x = 134,972.24 × 61,866.35
  4. Step 4: Simplify right side
    90,029.75x = 8,350,238,855.93
  5. Step 5: Solve for x
    x = 8,350,238,855.93/90,029.75
  6. Step 6: Final answer
    x = 92,749.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.