Home / 79,871.02-109,962.84-62,845.24

Finding the Fourth Proportional to 79,871.02, 109,962.84 and 62,845.24

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Solution

The fourth proportional to 79,871.02, 109,962.84 and 62,845.24 is: 86,522.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,871.02 : 109,962.84 = 62,845.24 : x
  2. Step 2: Convert to fraction form
    79,871.02/109,962.84 = 62,845.24/x
  3. Step 3: Cross multiply
    79,871.02x = 109,962.84 × 62,845.24
  4. Step 4: Simplify right side
    79,871.02x = 6,910,641,070.88
  5. Step 5: Solve for x
    x = 6,910,641,070.88/79,871.02
  6. Step 6: Final answer
    x = 86,522.51

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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.