Home / 74,622.75-103,066.88-49,428.51

Finding the Fourth Proportional to 74,622.75, 103,066.88 and 49,428.51

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Solution

The fourth proportional to 74,622.75, 103,066.88 and 49,428.51 is: 68,269.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622.75 : 103,066.88 = 49,428.51 : x
  2. Step 2: Convert to fraction form
    74,622.75/103,066.88 = 49,428.51/x
  3. Step 3: Cross multiply
    74,622.75x = 103,066.88 × 49,428.51
  4. Step 4: Simplify right side
    74,622.75x = 5,094,442,061.61
  5. Step 5: Solve for x
    x = 5,094,442,061.61/74,622.75
  6. Step 6: Final answer
    x = 68,269.29

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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.