Home / 40,072.96-60,111.12-10,491.28

Finding the Fourth Proportional to 40,072.96, 60,111.12 and 10,491.28

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Solution

The fourth proportional to 40,072.96, 60,111.12 and 10,491.28 is: 15,737.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,072.96 : 60,111.12 = 10,491.28 : x
  2. Step 2: Convert to fraction form
    40,072.96/60,111.12 = 10,491.28/x
  3. Step 3: Cross multiply
    40,072.96x = 60,111.12 × 10,491.28
  4. Step 4: Simplify right side
    40,072.96x = 630,642,591.03
  5. Step 5: Solve for x
    x = 630,642,591.03/40,072.96
  6. Step 6: Final answer
    x = 15,737.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.