Home / 115,321.12-172,975.52-31,079.93

Finding the Fourth Proportional to 115,321.12, 172,975.52 and 31,079.93

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Solution

The fourth proportional to 115,321.12, 172,975.52 and 31,079.93 is: 46,618.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,321.12 : 172,975.52 = 31,079.93 : x
  2. Step 2: Convert to fraction form
    115,321.12/172,975.52 = 31,079.93/x
  3. Step 3: Cross multiply
    115,321.12x = 172,975.52 × 31,079.93
  4. Step 4: Simplify right side
    115,321.12x = 5,376,066,033.04
  5. Step 5: Solve for x
    x = 5,376,066,033.04/115,321.12
  6. Step 6: Final answer
    x = 46,618.23

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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.