Home / 74,962.89-103,438.77-48,141.72

Finding the Fourth Proportional to 74,962.89, 103,438.77 and 48,141.72

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Solution

The fourth proportional to 74,962.89, 103,438.77 and 48,141.72 is: 66,429.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,962.89 : 103,438.77 = 48,141.72 : x
  2. Step 2: Convert to fraction form
    74,962.89/103,438.77 = 48,141.72/x
  3. Step 3: Cross multiply
    74,962.89x = 103,438.77 × 48,141.72
  4. Step 4: Simplify right side
    74,962.89x = 4,979,720,302.48
  5. Step 5: Solve for x
    x = 4,979,720,302.48/74,962.89
  6. Step 6: Final answer
    x = 66,429.14

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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.