Home / 51,501.66-77,287.12-18,221.60

Finding the Fourth Proportional to 51,501.66, 77,287.12 and 18,221.60

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Solution

The fourth proportional to 51,501.66, 77,287.12 and 18,221.60 is: 27,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,501.66 : 77,287.12 = 18,221.60 : x
  2. Step 2: Convert to fraction form
    51,501.66/77,287.12 = 18,221.60/x
  3. Step 3: Cross multiply
    51,501.66x = 77,287.12 × 18,221.60
  4. Step 4: Simplify right side
    51,501.66x = 1,408,294,985.79
  5. Step 5: Solve for x
    x = 1,408,294,985.79/51,501.66
  6. Step 6: Final answer
    x = 27,344.65

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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.