Home / 91,743.82-137,574.81-31,777.90

Finding the Fourth Proportional to 91,743.82, 137,574.81 and 31,777.90

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Solution

The fourth proportional to 91,743.82, 137,574.81 and 31,777.90 is: 47,652.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,743.82 : 137,574.81 = 31,777.90 : x
  2. Step 2: Convert to fraction form
    91,743.82/137,574.81 = 31,777.90/x
  3. Step 3: Cross multiply
    91,743.82x = 137,574.81 × 31,777.90
  4. Step 4: Simplify right side
    91,743.82x = 4,371,838,554.70
  5. Step 5: Solve for x
    x = 4,371,838,554.70/91,743.82
  6. Step 6: Final answer
    x = 47,652.68

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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.