Home / 51,419.03-77,120.75-17,690.18

Finding the Fourth Proportional to 51,419.03, 77,120.75 and 17,690.18

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Solution

The fourth proportional to 51,419.03, 77,120.75 and 17,690.18 is: 26,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,419.03 : 77,120.75 = 17,690.18 : x
  2. Step 2: Convert to fraction form
    51,419.03/77,120.75 = 17,690.18/x
  3. Step 3: Cross multiply
    51,419.03x = 77,120.75 × 17,690.18
  4. Step 4: Simplify right side
    51,419.03x = 1,364,279,607.86
  5. Step 5: Solve for x
    x = 1,364,279,607.86/51,419.03
  6. Step 6: Final answer
    x = 26,532.58

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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.