Home / 74,140.38-102,360.87-48,691.89

Finding the Fourth Proportional to 74,140.38, 102,360.87 and 48,691.89

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Solution

The fourth proportional to 74,140.38, 102,360.87 and 48,691.89 is: 67,225.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,140.38 : 102,360.87 = 48,691.89 : x
  2. Step 2: Convert to fraction form
    74,140.38/102,360.87 = 48,691.89/x
  3. Step 3: Cross multiply
    74,140.38x = 102,360.87 × 48,691.89
  4. Step 4: Simplify right side
    74,140.38x = 4,984,144,222.34
  5. Step 5: Solve for x
    x = 4,984,144,222.34/74,140.38
  6. Step 6: Final answer
    x = 67,225.77

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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.