Home / 51,377.40-77,145.30-28,049.40

Finding the Fourth Proportional to 51,377.40, 77,145.30 and 28,049.40

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Solution

The fourth proportional to 51,377.40, 77,145.30 and 28,049.40 is: 42,117.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,377.40 : 77,145.30 = 28,049.40 : x
  2. Step 2: Convert to fraction form
    51,377.40/77,145.30 = 28,049.40/x
  3. Step 3: Cross multiply
    51,377.40x = 77,145.30 × 28,049.40
  4. Step 4: Simplify right side
    51,377.40x = 2,163,879,377.82
  5. Step 5: Solve for x
    x = 2,163,879,377.82/51,377.40
  6. Step 6: Final answer
    x = 42,117.34

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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.