Home / 72,275.05-99,736.29-40,010.86

Finding the Fourth Proportional to 72,275.05, 99,736.29 and 40,010.86

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Solution

The fourth proportional to 72,275.05, 99,736.29 and 40,010.86 is: 55,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,275.05 : 99,736.29 = 40,010.86 : x
  2. Step 2: Convert to fraction form
    72,275.05/99,736.29 = 40,010.86/x
  3. Step 3: Cross multiply
    72,275.05x = 99,736.29 × 40,010.86
  4. Step 4: Simplify right side
    72,275.05x = 3,990,534,736.11
  5. Step 5: Solve for x
    x = 3,990,534,736.11/72,275.05
  6. Step 6: Final answer
    x = 55,213.17

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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.