Home / 72,977.10-100,707-41,146.02

Finding the Fourth Proportional to 72,977.10, 100,707 and 41,146.02

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Solution

The fourth proportional to 72,977.10, 100,707 and 41,146.02 is: 56,780.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,977.10 : 100,707 = 41,146.02 : x
  2. Step 2: Convert to fraction form
    72,977.10/100,707 = 41,146.02/x
  3. Step 3: Cross multiply
    72,977.10x = 100,707 × 41,146.02
  4. Step 4: Simplify right side
    72,977.10x = 4,143,692,236.14
  5. Step 5: Solve for x
    x = 4,143,692,236.14/72,977.10
  6. Step 6: Final answer
    x = 56,780.72

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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.