Home / 90,745.02-125,238.10-51,986.52

Finding the Fourth Proportional to 90,745.02, 125,238.10 and 51,986.52

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Solution

The fourth proportional to 90,745.02, 125,238.10 and 51,986.52 is: 71,747.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,745.02 : 125,238.10 = 51,986.52 : x
  2. Step 2: Convert to fraction form
    90,745.02/125,238.10 = 51,986.52/x
  3. Step 3: Cross multiply
    90,745.02x = 125,238.10 × 51,986.52
  4. Step 4: Simplify right side
    90,745.02x = 6,510,692,990.41
  5. Step 5: Solve for x
    x = 6,510,692,990.41/90,745.02
  6. Step 6: Final answer
    x = 71,747.11

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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.