Home / 51,543.54-77,339.70-28,169.28

Finding the Fourth Proportional to 51,543.54, 77,339.70 and 28,169.28

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Solution

The fourth proportional to 51,543.54, 77,339.70 and 28,169.28 is: 42,267.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,543.54 : 77,339.70 = 28,169.28 : x
  2. Step 2: Convert to fraction form
    51,543.54/77,339.70 = 28,169.28/x
  3. Step 3: Cross multiply
    51,543.54x = 77,339.70 × 28,169.28
  4. Step 4: Simplify right side
    51,543.54x = 2,178,603,664.42
  5. Step 5: Solve for x
    x = 2,178,603,664.42/51,543.54
  6. Step 6: Final answer
    x = 42,267.25

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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.