Home / 74,010.36-102,136.88-42,174.12

Finding the Fourth Proportional to 74,010.36, 102,136.88 and 42,174.12

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Solution

The fourth proportional to 74,010.36, 102,136.88 and 42,174.12 is: 58,201.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,010.36 : 102,136.88 = 42,174.12 : x
  2. Step 2: Convert to fraction form
    74,010.36/102,136.88 = 42,174.12/x
  3. Step 3: Cross multiply
    74,010.36x = 102,136.88 × 42,174.12
  4. Step 4: Simplify right side
    74,010.36x = 4,307,533,033.55
  5. Step 5: Solve for x
    x = 4,307,533,033.55/74,010.36
  6. Step 6: Final answer
    x = 58,201.76

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1.5x scale

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.