Home / 72,849.40-100,560.42-56,939.02

Finding the Fourth Proportional to 72,849.40, 100,560.42 and 56,939.02

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Solution

The fourth proportional to 72,849.40, 100,560.42 and 56,939.02 is: 78,597.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,849.40 : 100,560.42 = 56,939.02 : x
  2. Step 2: Convert to fraction form
    72,849.40/100,560.42 = 56,939.02/x
  3. Step 3: Cross multiply
    72,849.40x = 100,560.42 × 56,939.02
  4. Step 4: Simplify right side
    72,849.40x = 5,725,811,765.59
  5. Step 5: Solve for x
    x = 5,725,811,765.59/72,849.40
  6. Step 6: Final answer
    x = 78,597.93

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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.