Home / 91,605.50-137,427.85-28,424.24

Finding the Fourth Proportional to 91,605.50, 137,427.85 and 28,424.24

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Solution

The fourth proportional to 91,605.50, 137,427.85 and 28,424.24 is: 42,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,605.50 : 137,427.85 = 28,424.24 : x
  2. Step 2: Convert to fraction form
    91,605.50/137,427.85 = 28,424.24/x
  3. Step 3: Cross multiply
    91,605.50x = 137,427.85 × 28,424.24
  4. Step 4: Simplify right side
    91,605.50x = 3,906,282,191.08
  5. Step 5: Solve for x
    x = 3,906,282,191.08/91,605.50
  6. Step 6: Final answer
    x = 42,642.44

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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.