Home / 74,966.73-103,457.94-43,140.39

Finding the Fourth Proportional to 74,966.73, 103,457.94 and 43,140.39

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Solution

The fourth proportional to 74,966.73, 103,457.94 and 43,140.39 is: 59,535.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,966.73 : 103,457.94 = 43,140.39 : x
  2. Step 2: Convert to fraction form
    74,966.73/103,457.94 = 43,140.39/x
  3. Step 3: Cross multiply
    74,966.73x = 103,457.94 × 43,140.39
  4. Step 4: Simplify right side
    74,966.73x = 4,463,215,880.20
  5. Step 5: Solve for x
    x = 4,463,215,880.20/74,966.73
  6. Step 6: Final answer
    x = 59,535.96

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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.