Home / 96,938.15-133,708.90-62,885.78

Finding the Fourth Proportional to 96,938.15, 133,708.90 and 62,885.78

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Solution

The fourth proportional to 96,938.15, 133,708.90 and 62,885.78 is: 86,739.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,938.15 : 133,708.90 = 62,885.78 : x
  2. Step 2: Convert to fraction form
    96,938.15/133,708.90 = 62,885.78/x
  3. Step 3: Cross multiply
    96,938.15x = 133,708.90 × 62,885.78
  4. Step 4: Simplify right side
    96,938.15x = 8,408,388,646.50
  5. Step 5: Solve for x
    x = 8,408,388,646.50/96,938.15
  6. Step 6: Final answer
    x = 86,739.72

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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.