Home / 52,128.82-71,937.51-28,255.30

Finding the Fourth Proportional to 52,128.82, 71,937.51 and 28,255.30

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Solution

The fourth proportional to 52,128.82, 71,937.51 and 28,255.30 is: 38,992.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,128.82 : 71,937.51 = 28,255.30 : x
  2. Step 2: Convert to fraction form
    52,128.82/71,937.51 = 28,255.30/x
  3. Step 3: Cross multiply
    52,128.82x = 71,937.51 × 28,255.30
  4. Step 4: Simplify right side
    52,128.82x = 2,032,615,926.30
  5. Step 5: Solve for x
    x = 2,032,615,926.30/52,128.82
  6. Step 6: Final answer
    x = 38,992.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.