Home / 72,870.12-100,557.12-41,040.96

Finding the Fourth Proportional to 72,870.12, 100,557.12 and 41,040.96

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Solution

The fourth proportional to 72,870.12, 100,557.12 and 41,040.96 is: 56,634.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,870.12 : 100,557.12 = 41,040.96 : x
  2. Step 2: Convert to fraction form
    72,870.12/100,557.12 = 41,040.96/x
  3. Step 3: Cross multiply
    72,870.12x = 100,557.12 × 41,040.96
  4. Step 4: Simplify right side
    72,870.12x = 4,126,960,739.64
  5. Step 5: Solve for x
    x = 4,126,960,739.64/72,870.12
  6. Step 6: Final answer
    x = 56,634.47

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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.