Home / 51,971.05-71,720.03-28,097.72

Finding the Fourth Proportional to 51,971.05, 71,720.03 and 28,097.72

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Solution

The fourth proportional to 51,971.05, 71,720.03 and 28,097.72 is: 38,774.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,971.05 : 71,720.03 = 28,097.72 : x
  2. Step 2: Convert to fraction form
    51,971.05/71,720.03 = 28,097.72/x
  3. Step 3: Cross multiply
    51,971.05x = 71,720.03 × 28,097.72
  4. Step 4: Simplify right side
    51,971.05x = 2,015,169,301.93
  5. Step 5: Solve for x
    x = 2,015,169,301.93/51,971.05
  6. Step 6: Final answer
    x = 38,774.84

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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.