Home / 91,604.02-137,425.60-28,422.76

Finding the Fourth Proportional to 91,604.02, 137,425.60 and 28,422.76

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Solution

The fourth proportional to 91,604.02, 137,425.60 and 28,422.76 is: 42,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,604.02 : 137,425.60 = 28,422.76 : x
  2. Step 2: Convert to fraction form
    91,604.02/137,425.60 = 28,422.76/x
  3. Step 3: Cross multiply
    91,604.02x = 137,425.60 × 28,422.76
  4. Step 4: Simplify right side
    91,604.02x = 3,906,014,846.66
  5. Step 5: Solve for x
    x = 3,906,014,846.66/91,604.02
  6. Step 6: Final answer
    x = 42,640.21

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1.5x scale

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.