Home / 89,962.78-124,152.33-55,991.38

Finding the Fourth Proportional to 89,962.78, 124,152.33 and 55,991.38

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Solution

The fourth proportional to 89,962.78, 124,152.33 and 55,991.38 is: 77,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,962.78 : 124,152.33 = 55,991.38 : x
  2. Step 2: Convert to fraction form
    89,962.78/124,152.33 = 55,991.38/x
  3. Step 3: Cross multiply
    89,962.78x = 124,152.33 × 55,991.38
  4. Step 4: Simplify right side
    89,962.78x = 6,951,460,286.92
  5. Step 5: Solve for x
    x = 6,951,460,286.92/89,962.78
  6. Step 6: Final answer
    x = 77,270.40

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1.5x scale

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.