Home / 74,316.89-102,642.49-48,936.72

Finding the Fourth Proportional to 74,316.89, 102,642.49 and 48,936.72

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Solution

The fourth proportional to 74,316.89, 102,642.49 and 48,936.72 is: 67,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,316.89 : 102,642.49 = 48,936.72 : x
  2. Step 2: Convert to fraction form
    74,316.89/102,642.49 = 48,936.72/x
  3. Step 3: Cross multiply
    74,316.89x = 102,642.49 × 48,936.72
  4. Step 4: Simplify right side
    74,316.89x = 5,022,987,239.31
  5. Step 5: Solve for x
    x = 5,022,987,239.31/74,316.89
  6. Step 6: Final answer
    x = 67,588.77

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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.