Home / 74,962.46-103,438.20-48,141.30

Finding the Fourth Proportional to 74,962.46, 103,438.20 and 48,141.30

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Solution

The fourth proportional to 74,962.46, 103,438.20 and 48,141.30 is: 66,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,962.46 : 103,438.20 = 48,141.30 : x
  2. Step 2: Convert to fraction form
    74,962.46/103,438.20 = 48,141.30/x
  3. Step 3: Cross multiply
    74,962.46x = 103,438.20 × 48,141.30
  4. Step 4: Simplify right side
    74,962.46x = 4,979,649,715.29
  5. Step 5: Solve for x
    x = 4,979,649,715.29/74,962.46
  6. Step 6: Final answer
    x = 66,428.58

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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.