Home / 51,806.32-77,709.48-20,641.84

Finding the Fourth Proportional to 51,806.32, 77,709.48 and 20,641.84

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Solution

The fourth proportional to 51,806.32, 77,709.48 and 20,641.84 is: 30,962.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,806.32 : 77,709.48 = 20,641.84 : x
  2. Step 2: Convert to fraction form
    51,806.32/77,709.48 = 20,641.84/x
  3. Step 3: Cross multiply
    51,806.32x = 77,709.48 × 20,641.84
  4. Step 4: Simplify right side
    51,806.32x = 1,604,066,652.64
  5. Step 5: Solve for x
    x = 1,604,066,652.64/51,806.32
  6. Step 6: Final answer
    x = 30,962.76

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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.