Home / 51,520-77,251.60-15,971.48

Finding the Fourth Proportional to 51,520, 77,251.60 and 15,971.48

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Solution

The fourth proportional to 51,520, 77,251.60 and 15,971.48 is: 23,948.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,520 : 77,251.60 = 15,971.48 : x
  2. Step 2: Convert to fraction form
    51,520/77,251.60 = 15,971.48/x
  3. Step 3: Cross multiply
    51,520x = 77,251.60 × 15,971.48
  4. Step 4: Simplify right side
    51,520x = 1,233,822,384.37
  5. Step 5: Solve for x
    x = 1,233,822,384.37/51,520
  6. Step 6: Final answer
    x = 23,948.42

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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.