Home / 51,920.85-77,899.37-16,387.66

Finding the Fourth Proportional to 51,920.85, 77,899.37 and 16,387.66

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Solution

The fourth proportional to 51,920.85, 77,899.37 and 16,387.66 is: 24,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,920.85 : 77,899.37 = 16,387.66 : x
  2. Step 2: Convert to fraction form
    51,920.85/77,899.37 = 16,387.66/x
  3. Step 3: Cross multiply
    51,920.85x = 77,899.37 × 16,387.66
  4. Step 4: Simplify right side
    51,920.85x = 1,276,588,389.77
  5. Step 5: Solve for x
    x = 1,276,588,389.77/51,920.85
  6. Step 6: Final answer
    x = 24,587.20

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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.