Home / 66,311.03-99,430.19-26,289.47

Finding the Fourth Proportional to 66,311.03, 99,430.19 and 26,289.47

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Solution

The fourth proportional to 66,311.03, 99,430.19 and 26,289.47 is: 39,419.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,311.03 : 99,430.19 = 26,289.47 : x
  2. Step 2: Convert to fraction form
    66,311.03/99,430.19 = 26,289.47/x
  3. Step 3: Cross multiply
    66,311.03x = 99,430.19 × 26,289.47
  4. Step 4: Simplify right side
    66,311.03x = 2,613,966,997.10
  5. Step 5: Solve for x
    x = 2,613,966,997.10/66,311.03
  6. Step 6: Final answer
    x = 39,419.79

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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.