Home / 91,605.02-137,427.10-28,423.76

Finding the Fourth Proportional to 91,605.02, 137,427.10 and 28,423.76

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Solution

The fourth proportional to 91,605.02, 137,427.10 and 28,423.76 is: 42,641.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,605.02 : 137,427.10 = 28,423.76 : x
  2. Step 2: Convert to fraction form
    91,605.02/137,427.10 = 28,423.76/x
  3. Step 3: Cross multiply
    91,605.02x = 137,427.10 × 28,423.76
  4. Step 4: Simplify right side
    91,605.02x = 3,906,194,907.90
  5. Step 5: Solve for x
    x = 3,906,194,907.90/91,605.02
  6. Step 6: Final answer
    x = 42,641.71

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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.