Home / 72,638.10-108,665.55-62,885.70

Finding the Fourth Proportional to 72,638.10, 108,665.55 and 62,885.70

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Solution

The fourth proportional to 72,638.10, 108,665.55 and 62,885.70 is: 94,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,638.10 : 108,665.55 = 62,885.70 : x
  2. Step 2: Convert to fraction form
    72,638.10/108,665.55 = 62,885.70/x
  3. Step 3: Cross multiply
    72,638.10x = 108,665.55 × 62,885.70
  4. Step 4: Simplify right side
    72,638.10x = 6,833,509,177.64
  5. Step 5: Solve for x
    x = 6,833,509,177.64/72,638.10
  6. Step 6: Final answer
    x = 94,076.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.