Home / 72,972.16-100,701.78-41,141.12

Finding the Fourth Proportional to 72,972.16, 100,701.78 and 41,141.12

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Solution

The fourth proportional to 72,972.16, 100,701.78 and 41,141.12 is: 56,774.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,972.16 : 100,701.78 = 41,141.12 : x
  2. Step 2: Convert to fraction form
    72,972.16/100,701.78 = 41,141.12/x
  3. Step 3: Cross multiply
    72,972.16x = 100,701.78 × 41,141.12
  4. Step 4: Simplify right side
    72,972.16x = 4,142,984,015.19
  5. Step 5: Solve for x
    x = 4,142,984,015.19/72,972.16
  6. Step 6: Final answer
    x = 56,774.86

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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.