Home / 84,136.19-126,099.03-42,028.02

Finding the Fourth Proportional to 84,136.19, 126,099.03 and 42,028.02

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Solution

The fourth proportional to 84,136.19, 126,099.03 and 42,028.02 is: 62,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,136.19 : 126,099.03 = 42,028.02 : x
  2. Step 2: Convert to fraction form
    84,136.19/126,099.03 = 42,028.02/x
  3. Step 3: Cross multiply
    84,136.19x = 126,099.03 × 42,028.02
  4. Step 4: Simplify right side
    84,136.19x = 5,299,692,554.82
  5. Step 5: Solve for x
    x = 5,299,692,554.82/84,136.19
  6. Step 6: Final answer
    x = 62,989.46

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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.