Home / 51,985.55-71,740.08-28,112.21

Finding the Fourth Proportional to 51,985.55, 71,740.08 and 28,112.21

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Solution

The fourth proportional to 51,985.55, 71,740.08 and 28,112.21 is: 38,794.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,985.55 : 71,740.08 = 28,112.21 : x
  2. Step 2: Convert to fraction form
    51,985.55/71,740.08 = 28,112.21/x
  3. Step 3: Cross multiply
    51,985.55x = 71,740.08 × 28,112.21
  4. Step 4: Simplify right side
    51,985.55x = 2,016,772,508.24
  5. Step 5: Solve for x
    x = 2,016,772,508.24/51,985.55
  6. Step 6: Final answer
    x = 38,794.87

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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.