Home / 90,778.02-136,073.24-34,603.05

Finding the Fourth Proportional to 90,778.02, 136,073.24 and 34,603.05

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Solution

The fourth proportional to 90,778.02, 136,073.24 and 34,603.05 is: 51,868.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,778.02 : 136,073.24 = 34,603.05 : x
  2. Step 2: Convert to fraction form
    90,778.02/136,073.24 = 34,603.05/x
  3. Step 3: Cross multiply
    90,778.02x = 136,073.24 × 34,603.05
  4. Step 4: Simplify right side
    90,778.02x = 4,708,548,926.31
  5. Step 5: Solve for x
    x = 4,708,548,926.31/90,778.02
  6. Step 6: Final answer
    x = 51,868.82

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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.