Home / 80,829.02-121,306.72-56,043.62

Finding the Fourth Proportional to 80,829.02, 121,306.72 and 56,043.62

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Solution

The fourth proportional to 80,829.02, 121,306.72 and 56,043.62 is: 84,109.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,829.02 : 121,306.72 = 56,043.62 : x
  2. Step 2: Convert to fraction form
    80,829.02/121,306.72 = 56,043.62/x
  3. Step 3: Cross multiply
    80,829.02x = 121,306.72 × 56,043.62
  4. Step 4: Simplify right side
    80,829.02x = 6,798,467,719.13
  5. Step 5: Solve for x
    x = 6,798,467,719.13/80,829.02
  6. Step 6: Final answer
    x = 84,109.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.