Home / 55,430.91-83,134.21-15,979.45

Finding the Fourth Proportional to 55,430.91, 83,134.21 and 15,979.45

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Solution

The fourth proportional to 55,430.91, 83,134.21 and 15,979.45 is: 23,965.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,430.91 : 83,134.21 = 15,979.45 : x
  2. Step 2: Convert to fraction form
    55,430.91/83,134.21 = 15,979.45/x
  3. Step 3: Cross multiply
    55,430.91x = 83,134.21 × 15,979.45
  4. Step 4: Simplify right side
    55,430.91x = 1,328,438,951.98
  5. Step 5: Solve for x
    x = 1,328,438,951.98/55,430.91
  6. Step 6: Final answer
    x = 23,965.67

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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.