Home / 91,744.12-137,583.16-31,756.29

Finding the Fourth Proportional to 91,744.12, 137,583.16 and 31,756.29

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Solution

The fourth proportional to 91,744.12, 137,583.16 and 31,756.29 is: 47,623.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,744.12 : 137,583.16 = 31,756.29 : x
  2. Step 2: Convert to fraction form
    91,744.12/137,583.16 = 31,756.29/x
  3. Step 3: Cross multiply
    91,744.12x = 137,583.16 × 31,756.29
  4. Step 4: Simplify right side
    91,744.12x = 4,369,131,164.62
  5. Step 5: Solve for x
    x = 4,369,131,164.62/91,744.12
  6. Step 6: Final answer
    x = 47,623.01

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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.