Home / 74,472.02-102,859.13-49,277.78

Finding the Fourth Proportional to 74,472.02, 102,859.13 and 49,277.78

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Solution

The fourth proportional to 74,472.02, 102,859.13 and 49,277.78 is: 68,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,472.02 : 102,859.13 = 49,277.78 : x
  2. Step 2: Convert to fraction form
    74,472.02/102,859.13 = 49,277.78/x
  3. Step 3: Cross multiply
    74,472.02x = 102,859.13 × 49,277.78
  4. Step 4: Simplify right side
    74,472.02x = 5,068,669,579.13
  5. Step 5: Solve for x
    x = 5,068,669,579.13/74,472.02
  6. Step 6: Final answer
    x = 68,061.40

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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.