Home / 73,515.15-110,276.91-20,920.50

Finding the Fourth Proportional to 73,515.15, 110,276.91 and 20,920.50

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Solution

The fourth proportional to 73,515.15, 110,276.91 and 20,920.50 is: 31,381.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,515.15 : 110,276.91 = 20,920.50 : x
  2. Step 2: Convert to fraction form
    73,515.15/110,276.91 = 20,920.50/x
  3. Step 3: Cross multiply
    73,515.15x = 110,276.91 × 20,920.50
  4. Step 4: Simplify right side
    73,515.15x = 2,307,048,095.66
  5. Step 5: Solve for x
    x = 2,307,048,095.66/73,515.15
  6. Step 6: Final answer
    x = 31,381.94

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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.