Home / 72,022.20-99,350.70-42,208.44

Finding the Fourth Proportional to 72,022.20, 99,350.70 and 42,208.44

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Solution

The fourth proportional to 72,022.20, 99,350.70 and 42,208.44 is: 58,224.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,022.20 : 99,350.70 = 42,208.44 : x
  2. Step 2: Convert to fraction form
    72,022.20/99,350.70 = 42,208.44/x
  3. Step 3: Cross multiply
    72,022.20x = 99,350.70 × 42,208.44
  4. Step 4: Simplify right side
    72,022.20x = 4,193,438,059.91
  5. Step 5: Solve for x
    x = 4,193,438,059.91/72,022.20
  6. Step 6: Final answer
    x = 58,224.24

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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.