Home / 115,051.76-172,585.49-39,119.39

Finding the Fourth Proportional to 115,051.76, 172,585.49 and 39,119.39

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Solution

The fourth proportional to 115,051.76, 172,585.49 and 39,119.39 is: 58,681.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,051.76 : 172,585.49 = 39,119.39 : x
  2. Step 2: Convert to fraction form
    115,051.76/172,585.49 = 39,119.39/x
  3. Step 3: Cross multiply
    115,051.76x = 172,585.49 × 39,119.39
  4. Step 4: Simplify right side
    115,051.76x = 6,751,438,680.32
  5. Step 5: Solve for x
    x = 6,751,438,680.32/115,051.76
  6. Step 6: Final answer
    x = 58,681.75

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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.