Home / 72,277.31-99,742.69-40,452.36

Finding the Fourth Proportional to 72,277.31, 99,742.69 and 40,452.36

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Solution

The fourth proportional to 72,277.31, 99,742.69 and 40,452.36 is: 55,824.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,277.31 : 99,742.69 = 40,452.36 : x
  2. Step 2: Convert to fraction form
    72,277.31/99,742.69 = 40,452.36/x
  3. Step 3: Cross multiply
    72,277.31x = 99,742.69 × 40,452.36
  4. Step 4: Simplify right side
    72,277.31x = 4,034,827,440.83
  5. Step 5: Solve for x
    x = 4,034,827,440.83/72,277.31
  6. Step 6: Final answer
    x = 55,824.26

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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.