Home / 115,051.80-172,577.70-31,945.80

Finding the Fourth Proportional to 115,051.80, 172,577.70 and 31,945.80

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Solution

The fourth proportional to 115,051.80, 172,577.70 and 31,945.80 is: 47,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,051.80 : 172,577.70 = 31,945.80 : x
  2. Step 2: Convert to fraction form
    115,051.80/172,577.70 = 31,945.80/x
  3. Step 3: Cross multiply
    115,051.80x = 172,577.70 × 31,945.80
  4. Step 4: Simplify right side
    115,051.80x = 5,513,132,688.66
  5. Step 5: Solve for x
    x = 5,513,132,688.66/115,051.80
  6. Step 6: Final answer
    x = 47,918.70

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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.