Home / 40,128.29-55,358.66-25,985.69

Finding the Fourth Proportional to 40,128.29, 55,358.66 and 25,985.69

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Solution

The fourth proportional to 40,128.29, 55,358.66 and 25,985.69 is: 35,848.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,128.29 : 55,358.66 = 25,985.69 : x
  2. Step 2: Convert to fraction form
    40,128.29/55,358.66 = 25,985.69/x
  3. Step 3: Cross multiply
    40,128.29x = 55,358.66 × 25,985.69
  4. Step 4: Simplify right side
    40,128.29x = 1,438,532,765.75
  5. Step 5: Solve for x
    x = 1,438,532,765.75/40,128.29
  6. Step 6: Final answer
    x = 35,848.35

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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.