Home / 74,316.65-102,642.16-48,936.47

Finding the Fourth Proportional to 74,316.65, 102,642.16 and 48,936.47

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Solution

The fourth proportional to 74,316.65, 102,642.16 and 48,936.47 is: 67,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,316.65 : 102,642.16 = 48,936.47 : x
  2. Step 2: Convert to fraction form
    74,316.65/102,642.16 = 48,936.47/x
  3. Step 3: Cross multiply
    74,316.65x = 102,642.16 × 48,936.47
  4. Step 4: Simplify right side
    74,316.65x = 5,022,944,983.58
  5. Step 5: Solve for x
    x = 5,022,944,983.58/74,316.65
  6. Step 6: Final answer
    x = 67,588.42

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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.