Home / 79,030.15-109,184.40-66,263.53

Finding the Fourth Proportional to 79,030.15, 109,184.40 and 66,263.53

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Solution

The fourth proportional to 79,030.15, 109,184.40 and 66,263.53 is: 91,546.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,030.15 : 109,184.40 = 66,263.53 : x
  2. Step 2: Convert to fraction form
    79,030.15/109,184.40 = 66,263.53/x
  3. Step 3: Cross multiply
    79,030.15x = 109,184.40 × 66,263.53
  4. Step 4: Simplify right side
    79,030.15x = 7,234,943,764.93
  5. Step 5: Solve for x
    x = 7,234,943,764.93/79,030.15
  6. Step 6: Final answer
    x = 91,546.63

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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.