Home / 74,748.31-103,153.47-40,756.51

Finding the Fourth Proportional to 74,748.31, 103,153.47 and 40,756.51

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Solution

The fourth proportional to 74,748.31, 103,153.47 and 40,756.51 is: 56,244.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,748.31 : 103,153.47 = 40,756.51 : x
  2. Step 2: Convert to fraction form
    74,748.31/103,153.47 = 40,756.51/x
  3. Step 3: Cross multiply
    74,748.31x = 103,153.47 × 40,756.51
  4. Step 4: Simplify right side
    74,748.31x = 4,204,175,431.59
  5. Step 5: Solve for x
    x = 4,204,175,431.59/74,748.31
  6. Step 6: Final answer
    x = 56,244.42

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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.