Home / 79,135.02-109,259.01-62,207.64

Finding the Fourth Proportional to 79,135.02, 109,259.01 and 62,207.64

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Solution

The fourth proportional to 79,135.02, 109,259.01 and 62,207.64 is: 85,887.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,135.02 : 109,259.01 = 62,207.64 : x
  2. Step 2: Convert to fraction form
    79,135.02/109,259.01 = 62,207.64/x
  3. Step 3: Cross multiply
    79,135.02x = 109,259.01 × 62,207.64
  4. Step 4: Simplify right side
    79,135.02x = 6,796,745,160.84
  5. Step 5: Solve for x
    x = 6,796,745,160.84/79,135.02
  6. Step 6: Final answer
    x = 85,887.96

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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.