Home / 91,609.02-137,433.15-28,427.76

Finding the Fourth Proportional to 91,609.02, 137,433.15 and 28,427.76

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Solution

The fourth proportional to 91,609.02, 137,433.15 and 28,427.76 is: 42,647.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,609.02 : 137,433.15 = 28,427.76 : x
  2. Step 2: Convert to fraction form
    91,609.02/137,433.15 = 28,427.76/x
  3. Step 3: Cross multiply
    91,609.02x = 137,433.15 × 28,427.76
  4. Step 4: Simplify right side
    91,609.02x = 3,906,916,604.24
  5. Step 5: Solve for x
    x = 3,906,916,604.24/91,609.02
  6. Step 6: Final answer
    x = 42,647.73

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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.