Home / 51,990.18-77,995.80-16,920.42

Finding the Fourth Proportional to 51,990.18, 77,995.80 and 16,920.42

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Solution

The fourth proportional to 51,990.18, 77,995.80 and 16,920.42 is: 25,384.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,990.18 : 77,995.80 = 16,920.42 : x
  2. Step 2: Convert to fraction form
    51,990.18/77,995.80 = 16,920.42/x
  3. Step 3: Cross multiply
    51,990.18x = 77,995.80 × 16,920.42
  4. Step 4: Simplify right side
    51,990.18x = 1,319,721,694.24
  5. Step 5: Solve for x
    x = 1,319,721,694.24/51,990.18
  6. Step 6: Final answer
    x = 25,384.06

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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.