Home / 50,865.76-70,192.80-28,205.68

Finding the Fourth Proportional to 50,865.76, 70,192.80 and 28,205.68

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Solution

The fourth proportional to 50,865.76, 70,192.80 and 28,205.68 is: 38,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,865.76 : 70,192.80 = 28,205.68 : x
  2. Step 2: Convert to fraction form
    50,865.76/70,192.80 = 28,205.68/x
  3. Step 3: Cross multiply
    50,865.76x = 70,192.80 × 28,205.68
  4. Step 4: Simplify right side
    50,865.76x = 1,979,835,655.10
  5. Step 5: Solve for x
    x = 1,979,835,655.10/50,865.76
  6. Step 6: Final answer
    x = 38,922.76

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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.