Home / 51,434.40-77,157.77-18,147.58

Finding the Fourth Proportional to 51,434.40, 77,157.77 and 18,147.58

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Solution

The fourth proportional to 51,434.40, 77,157.77 and 18,147.58 is: 27,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,434.40 : 77,157.77 = 18,147.58 : x
  2. Step 2: Convert to fraction form
    51,434.40/77,157.77 = 18,147.58/x
  3. Step 3: Cross multiply
    51,434.40x = 77,157.77 × 18,147.58
  4. Step 4: Simplify right side
    51,434.40x = 1,400,226,803.70
  5. Step 5: Solve for x
    x = 1,400,226,803.70/51,434.40
  6. Step 6: Final answer
    x = 27,223.55

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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.