Home / 90,258.86-135,240.33-63,916.30

Finding the Fourth Proportional to 90,258.86, 135,240.33 and 63,916.30

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Solution

The fourth proportional to 90,258.86, 135,240.33 and 63,916.30 is: 95,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,258.86 : 135,240.33 = 63,916.30 : x
  2. Step 2: Convert to fraction form
    90,258.86/135,240.33 = 63,916.30/x
  3. Step 3: Cross multiply
    90,258.86x = 135,240.33 × 63,916.30
  4. Step 4: Simplify right side
    90,258.86x = 8,644,061,504.38
  5. Step 5: Solve for x
    x = 8,644,061,504.38/90,258.86
  6. Step 6: Final answer
    x = 95,769.67

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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.