Home / 81,345.20-122,069.64-34,598

Finding the Fourth Proportional to 81,345.20, 122,069.64 and 34,598

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Solution

The fourth proportional to 81,345.20, 122,069.64 and 34,598 is: 51,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,345.20 : 122,069.64 = 34,598 : x
  2. Step 2: Convert to fraction form
    81,345.20/122,069.64 = 34,598/x
  3. Step 3: Cross multiply
    81,345.20x = 122,069.64 × 34,598
  4. Step 4: Simplify right side
    81,345.20x = 4,223,365,404.72
  5. Step 5: Solve for x
    x = 4,223,365,404.72/81,345.20
  6. Step 6: Final answer
    x = 51,919.05

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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.