Home / 51,225.51-70,691.61-28,565.97

Finding the Fourth Proportional to 51,225.51, 70,691.61 and 28,565.97

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Solution

The fourth proportional to 51,225.51, 70,691.61 and 28,565.97 is: 39,421.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,225.51 : 70,691.61 = 28,565.97 : x
  2. Step 2: Convert to fraction form
    51,225.51/70,691.61 = 28,565.97/x
  3. Step 3: Cross multiply
    51,225.51x = 70,691.61 × 28,565.97
  4. Step 4: Simplify right side
    51,225.51x = 2,019,374,619.54
  5. Step 5: Solve for x
    x = 2,019,374,619.54/51,225.51
  6. Step 6: Final answer
    x = 39,421.27

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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.