Home / 96,939.15-133,710.28-62,886.78

Finding the Fourth Proportional to 96,939.15, 133,710.28 and 62,886.78

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Solution

The fourth proportional to 96,939.15, 133,710.28 and 62,886.78 is: 86,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,939.15 : 133,710.28 = 62,886.78 : x
  2. Step 2: Convert to fraction form
    96,939.15/133,710.28 = 62,886.78/x
  3. Step 3: Cross multiply
    96,939.15x = 133,710.28 × 62,886.78
  4. Step 4: Simplify right side
    96,939.15x = 8,408,608,962.10
  5. Step 5: Solve for x
    x = 8,408,608,962.10/96,939.15
  6. Step 6: Final answer
    x = 86,741.10

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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.