Home / 89,991.27-135,011.93-39,381.26

Finding the Fourth Proportional to 89,991.27, 135,011.93 and 39,381.26

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Solution

The fourth proportional to 89,991.27, 135,011.93 and 39,381.26 is: 59,082.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,991.27 : 135,011.93 = 39,381.26 : x
  2. Step 2: Convert to fraction form
    89,991.27/135,011.93 = 39,381.26/x
  3. Step 3: Cross multiply
    89,991.27x = 135,011.93 × 39,381.26
  4. Step 4: Simplify right side
    89,991.27x = 5,316,939,046.47
  5. Step 5: Solve for x
    x = 5,316,939,046.47/89,991.27
  6. Step 6: Final answer
    x = 59,082.83

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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.