Home / 72,200.16-99,636.23-40,369.13

Finding the Fourth Proportional to 72,200.16, 99,636.23 and 40,369.13

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Solution

The fourth proportional to 72,200.16, 99,636.23 and 40,369.13 is: 55,709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,200.16 : 99,636.23 = 40,369.13 : x
  2. Step 2: Convert to fraction form
    72,200.16/99,636.23 = 40,369.13/x
  3. Step 3: Cross multiply
    72,200.16x = 99,636.23 × 40,369.13
  4. Step 4: Simplify right side
    72,200.16x = 4,022,228,231.33
  5. Step 5: Solve for x
    x = 4,022,228,231.33/72,200.16
  6. Step 6: Final answer
    x = 55,709.41

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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.