Home / 51,886.36-77,861.04-20,719

Finding the Fourth Proportional to 51,886.36, 77,861.04 and 20,719

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Solution

The fourth proportional to 51,886.36, 77,861.04 and 20,719 is: 31,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,886.36 : 77,861.04 = 20,719 : x
  2. Step 2: Convert to fraction form
    51,886.36/77,861.04 = 20,719/x
  3. Step 3: Cross multiply
    51,886.36x = 77,861.04 × 20,719
  4. Step 4: Simplify right side
    51,886.36x = 1,613,202,887.76
  5. Step 5: Solve for x
    x = 1,613,202,887.76/51,886.36
  6. Step 6: Final answer
    x = 31,091.08

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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.