Home / 51,962.12-77,972.28-20,799.80

Finding the Fourth Proportional to 51,962.12, 77,972.28 and 20,799.80

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Solution

The fourth proportional to 51,962.12, 77,972.28 and 20,799.80 is: 31,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,962.12 : 77,972.28 = 20,799.80 : x
  2. Step 2: Convert to fraction form
    51,962.12/77,972.28 = 20,799.80/x
  3. Step 3: Cross multiply
    51,962.12x = 77,972.28 × 20,799.80
  4. Step 4: Simplify right side
    51,962.12x = 1,621,807,829.54
  5. Step 5: Solve for x
    x = 1,621,807,829.54/51,962.12
  6. Step 6: Final answer
    x = 31,211.35

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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.