Home / 51,869.76-71,578.34-28,899.05

Finding the Fourth Proportional to 51,869.76, 71,578.34 and 28,899.05

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Solution

The fourth proportional to 51,869.76, 71,578.34 and 28,899.05 is: 39,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,869.76 : 71,578.34 = 28,899.05 : x
  2. Step 2: Convert to fraction form
    51,869.76/71,578.34 = 28,899.05/x
  3. Step 3: Cross multiply
    51,869.76x = 71,578.34 × 28,899.05
  4. Step 4: Simplify right side
    51,869.76x = 2,068,545,524.19
  5. Step 5: Solve for x
    x = 2,068,545,524.19/51,869.76
  6. Step 6: Final answer
    x = 39,879.60

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1.5x scale

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.