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Finding the Fourth Proportional to 53,281.11, 79,919.78 and 13,300.32

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Solution

The fourth proportional to 53,281.11, 79,919.78 and 13,300.32 is: 19,950.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,281.11 : 79,919.78 = 13,300.32 : x
  2. Step 2: Convert to fraction form
    53,281.11/79,919.78 = 13,300.32/x
  3. Step 3: Cross multiply
    53,281.11x = 79,919.78 × 13,300.32
  4. Step 4: Simplify right side
    53,281.11x = 1,062,958,581.83
  5. Step 5: Solve for x
    x = 1,062,958,581.83/53,281.11
  6. Step 6: Final answer
    x = 19,950.01

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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.