Home / 66,274.38-99,328.38-39,640.02

Finding the Fourth Proportional to 66,274.38, 99,328.38 and 39,640.02

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Solution

The fourth proportional to 66,274.38, 99,328.38 and 39,640.02 is: 59,410.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,274.38 : 99,328.38 = 39,640.02 : x
  2. Step 2: Convert to fraction form
    66,274.38/99,328.38 = 39,640.02/x
  3. Step 3: Cross multiply
    66,274.38x = 99,328.38 × 39,640.02
  4. Step 4: Simplify right side
    66,274.38x = 3,937,378,969.77
  5. Step 5: Solve for x
    x = 3,937,378,969.77/66,274.38
  6. Step 6: Final answer
    x = 59,410.27

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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.