Home / 52,109.88-78,175.66-20,945.14

Finding the Fourth Proportional to 52,109.88, 78,175.66 and 20,945.14

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Solution

The fourth proportional to 52,109.88, 78,175.66 and 20,945.14 is: 31,422.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,109.88 : 78,175.66 = 20,945.14 : x
  2. Step 2: Convert to fraction form
    52,109.88/78,175.66 = 20,945.14/x
  3. Step 3: Cross multiply
    52,109.88x = 78,175.66 × 20,945.14
  4. Step 4: Simplify right side
    52,109.88x = 1,637,400,143.29
  5. Step 5: Solve for x
    x = 1,637,400,143.29/52,109.88
  6. Step 6: Final answer
    x = 31,422.07

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1.5x scale

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.