Home / 80,717.04-111,326.40-52,431.84

Finding the Fourth Proportional to 80,717.04, 111,326.40 and 52,431.84

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Solution

The fourth proportional to 80,717.04, 111,326.40 and 52,431.84 is: 72,314.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,717.04 : 111,326.40 = 52,431.84 : x
  2. Step 2: Convert to fraction form
    80,717.04/111,326.40 = 52,431.84/x
  3. Step 3: Cross multiply
    80,717.04x = 111,326.40 × 52,431.84
  4. Step 4: Simplify right side
    80,717.04x = 5,837,047,992.58
  5. Step 5: Solve for x
    x = 5,837,047,992.58/80,717.04
  6. Step 6: Final answer
    x = 72,314.94

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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.