Home / 51,412.83-70,949.28-28,751.85

Finding the Fourth Proportional to 51,412.83, 70,949.28 and 28,751.85

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Solution

The fourth proportional to 51,412.83, 70,949.28 and 28,751.85 is: 39,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,412.83 : 70,949.28 = 28,751.85 : x
  2. Step 2: Convert to fraction form
    51,412.83/70,949.28 = 28,751.85/x
  3. Step 3: Cross multiply
    51,412.83x = 70,949.28 × 28,751.85
  4. Step 4: Simplify right side
    51,412.83x = 2,039,923,056.17
  5. Step 5: Solve for x
    x = 2,039,923,056.17/51,412.83
  6. Step 6: Final answer
    x = 39,677.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.