Home / 74,172.88-111,319.11-38,645.07

Finding the Fourth Proportional to 74,172.88, 111,319.11 and 38,645.07

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Solution

The fourth proportional to 74,172.88, 111,319.11 and 38,645.07 is: 57,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,172.88 : 111,319.11 = 38,645.07 : x
  2. Step 2: Convert to fraction form
    74,172.88/111,319.11 = 38,645.07/x
  3. Step 3: Cross multiply
    74,172.88x = 111,319.11 × 38,645.07
  4. Step 4: Simplify right side
    74,172.88x = 4,301,934,798.29
  5. Step 5: Solve for x
    x = 4,301,934,798.29/74,172.88
  6. Step 6: Final answer
    x = 57,998.76

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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.