Home / 51,988.78-78,001.26-16,928.20

Finding the Fourth Proportional to 51,988.78, 78,001.26 and 16,928.20

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Solution

The fourth proportional to 51,988.78, 78,001.26 and 16,928.20 is: 25,398.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.78 : 78,001.26 = 16,928.20 : x
  2. Step 2: Convert to fraction form
    51,988.78/78,001.26 = 16,928.20/x
  3. Step 3: Cross multiply
    51,988.78x = 78,001.26 × 16,928.20
  4. Step 4: Simplify right side
    51,988.78x = 1,320,420,929.53
  5. Step 5: Solve for x
    x = 1,320,420,929.53/51,988.78
  6. Step 6: Final answer
    x = 25,398.19

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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.