Home / 71,851.35-99,152.19-40,019.58

Finding the Fourth Proportional to 71,851.35, 99,152.19 and 40,019.58

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Solution

The fourth proportional to 71,851.35, 99,152.19 and 40,019.58 is: 55,225.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,851.35 : 99,152.19 = 40,019.58 : x
  2. Step 2: Convert to fraction form
    71,851.35/99,152.19 = 40,019.58/x
  3. Step 3: Cross multiply
    71,851.35x = 99,152.19 × 40,019.58
  4. Step 4: Simplify right side
    71,851.35x = 3,968,028,999.88
  5. Step 5: Solve for x
    x = 3,968,028,999.88/71,851.35
  6. Step 6: Final answer
    x = 55,225.53

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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.