Home / 91,638.81-137,458.33-25,079.51

Finding the Fourth Proportional to 91,638.81, 137,458.33 and 25,079.51

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Solution

The fourth proportional to 91,638.81, 137,458.33 and 25,079.51 is: 37,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,638.81 : 137,458.33 = 25,079.51 : x
  2. Step 2: Convert to fraction form
    91,638.81/137,458.33 = 25,079.51/x
  3. Step 3: Cross multiply
    91,638.81x = 137,458.33 × 25,079.51
  4. Step 4: Simplify right side
    91,638.81x = 3,447,387,842.77
  5. Step 5: Solve for x
    x = 3,447,387,842.77/91,638.81
  6. Step 6: Final answer
    x = 37,619.30

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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.