Home / 90,686.72-125,148.72-50,402.96

Finding the Fourth Proportional to 90,686.72, 125,148.72 and 50,402.96

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Solution

The fourth proportional to 90,686.72, 125,148.72 and 50,402.96 is: 69,556.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,686.72 : 125,148.72 = 50,402.96 : x
  2. Step 2: Convert to fraction form
    90,686.72/125,148.72 = 50,402.96/x
  3. Step 3: Cross multiply
    90,686.72x = 125,148.72 × 50,402.96
  4. Step 4: Simplify right side
    90,686.72x = 6,307,865,928.21
  5. Step 5: Solve for x
    x = 6,307,865,928.21/90,686.72
  6. Step 6: Final answer
    x = 69,556.67

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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.