Home / 52,921.50-79,382.25-15,985.50

Finding the Fourth Proportional to 52,921.50, 79,382.25 and 15,985.50

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Solution

The fourth proportional to 52,921.50, 79,382.25 and 15,985.50 is: 23,978.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,921.50 : 79,382.25 = 15,985.50 : x
  2. Step 2: Convert to fraction form
    52,921.50/79,382.25 = 15,985.50/x
  3. Step 3: Cross multiply
    52,921.50x = 79,382.25 × 15,985.50
  4. Step 4: Simplify right side
    52,921.50x = 1,268,964,957.38
  5. Step 5: Solve for x
    x = 1,268,964,957.38/52,921.50
  6. Step 6: Final answer
    x = 23,978.25

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.