Home / 79,030.15-109,184.41-66,263.54

Finding the Fourth Proportional to 79,030.15, 109,184.41 and 66,263.54

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Solution

The fourth proportional to 79,030.15, 109,184.41 and 66,263.54 is: 91,546.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,030.15 : 109,184.41 = 66,263.54 : x
  2. Step 2: Convert to fraction form
    79,030.15/109,184.41 = 66,263.54/x
  3. Step 3: Cross multiply
    79,030.15x = 109,184.41 × 66,263.54
  4. Step 4: Simplify right side
    79,030.15x = 7,234,944,642.17
  5. Step 5: Solve for x
    x = 7,234,944,642.17/79,030.15
  6. Step 6: Final answer
    x = 91,546.65

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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.