Home / 79,043.48-109,119.66-61,097.96

Finding the Fourth Proportional to 79,043.48, 109,119.66 and 61,097.96

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Solution

The fourth proportional to 79,043.48, 109,119.66 and 61,097.96 is: 84,345.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,043.48 : 109,119.66 = 61,097.96 : x
  2. Step 2: Convert to fraction form
    79,043.48/109,119.66 = 61,097.96/x
  3. Step 3: Cross multiply
    79,043.48x = 109,119.66 × 61,097.96
  4. Step 4: Simplify right side
    79,043.48x = 6,666,988,621.89
  5. Step 5: Solve for x
    x = 6,666,988,621.89/79,043.48
  6. Step 6: Final answer
    x = 84,345.84

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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.