Home / 84,655.12-126,871.26-47,232.80

Finding the Fourth Proportional to 84,655.12, 126,871.26 and 47,232.80

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Solution

The fourth proportional to 84,655.12, 126,871.26 and 47,232.80 is: 70,787.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,655.12 : 126,871.26 = 47,232.80 : x
  2. Step 2: Convert to fraction form
    84,655.12/126,871.26 = 47,232.80/x
  3. Step 3: Cross multiply
    84,655.12x = 126,871.26 × 47,232.80
  4. Step 4: Simplify right side
    84,655.12x = 5,992,484,849.33
  5. Step 5: Solve for x
    x = 5,992,484,849.33/84,655.12
  6. Step 6: Final answer
    x = 70,787.03

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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.