Home / 79,214.08-109,355.20-61,268.48

Finding the Fourth Proportional to 79,214.08, 109,355.20 and 61,268.48

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Solution

The fourth proportional to 79,214.08, 109,355.20 and 61,268.48 is: 84,581.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,214.08 : 109,355.20 = 61,268.48 : x
  2. Step 2: Convert to fraction form
    79,214.08/109,355.20 = 61,268.48/x
  3. Step 3: Cross multiply
    79,214.08x = 109,355.20 × 61,268.48
  4. Step 4: Simplify right side
    79,214.08x = 6,700,026,884.10
  5. Step 5: Solve for x
    x = 6,700,026,884.10/79,214.08
  6. Step 6: Final answer
    x = 84,581.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.