Home / 74,965.38-103,421.27-52,317.51

Finding the Fourth Proportional to 74,965.38, 103,421.27 and 52,317.51

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Solution

The fourth proportional to 74,965.38, 103,421.27 and 52,317.51 is: 72,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,965.38 : 103,421.27 = 52,317.51 : x
  2. Step 2: Convert to fraction form
    74,965.38/103,421.27 = 52,317.51/x
  3. Step 3: Cross multiply
    74,965.38x = 103,421.27 × 52,317.51
  4. Step 4: Simplify right side
    74,965.38x = 5,410,743,070.40
  5. Step 5: Solve for x
    x = 5,410,743,070.40/74,965.38
  6. Step 6: Final answer
    x = 72,176.56

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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.