Home / 79,415.22-109,584.90-47,583.30

Finding the Fourth Proportional to 79,415.22, 109,584.90 and 47,583.30

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Solution

The fourth proportional to 79,415.22, 109,584.90 and 47,583.30 is: 65,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,415.22 : 109,584.90 = 47,583.30 : x
  2. Step 2: Convert to fraction form
    79,415.22/109,584.90 = 47,583.30/x
  3. Step 3: Cross multiply
    79,415.22x = 109,584.90 × 47,583.30
  4. Step 4: Simplify right side
    79,415.22x = 5,214,411,172.17
  5. Step 5: Solve for x
    x = 5,214,411,172.17/79,415.22
  6. Step 6: Final answer
    x = 65,660.10

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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.