Home / 79,065.41-109,045.31-56,397.15

Finding the Fourth Proportional to 79,065.41, 109,045.31 and 56,397.15

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Solution

The fourth proportional to 79,065.41, 109,045.31 and 56,397.15 is: 77,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,065.41 : 109,045.31 = 56,397.15 : x
  2. Step 2: Convert to fraction form
    79,065.41/109,045.31 = 56,397.15/x
  3. Step 3: Cross multiply
    79,065.41x = 109,045.31 × 56,397.15
  4. Step 4: Simplify right side
    79,065.41x = 6,149,844,422.88
  5. Step 5: Solve for x
    x = 6,149,844,422.88/79,065.41
  6. Step 6: Final answer
    x = 77,781.74

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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.