Home / 79,116.51-109,179.93-45,124.09

Finding the Fourth Proportional to 79,116.51, 109,179.93 and 45,124.09

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Solution

The fourth proportional to 79,116.51, 109,179.93 and 45,124.09 is: 62,270.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,116.51 : 109,179.93 = 45,124.09 : x
  2. Step 2: Convert to fraction form
    79,116.51/109,179.93 = 45,124.09/x
  3. Step 3: Cross multiply
    79,116.51x = 109,179.93 × 45,124.09
  4. Step 4: Simplify right side
    79,116.51x = 4,926,644,987.51
  5. Step 5: Solve for x
    x = 4,926,644,987.51/79,116.51
  6. Step 6: Final answer
    x = 62,270.76

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1.5x scale

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.