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Finding the Fourth Proportional to 74,028.50, 102,159.01 and 40,037.03

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Solution

The fourth proportional to 74,028.50, 102,159.01 and 40,037.03 is: 55,250.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,028.50 : 102,159.01 = 40,037.03 : x
  2. Step 2: Convert to fraction form
    74,028.50/102,159.01 = 40,037.03/x
  3. Step 3: Cross multiply
    74,028.50x = 102,159.01 × 40,037.03
  4. Step 4: Simplify right side
    74,028.50x = 4,090,143,348.14
  5. Step 5: Solve for x
    x = 4,090,143,348.14/74,028.50
  6. Step 6: Final answer
    x = 55,250.93

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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.