Home / 72,277.15-108,218.89-56,210.90

Finding the Fourth Proportional to 72,277.15, 108,218.89 and 56,210.90

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Solution

The fourth proportional to 72,277.15, 108,218.89 and 56,210.90 is: 84,163.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,277.15 : 108,218.89 = 56,210.90 : x
  2. Step 2: Convert to fraction form
    72,277.15/108,218.89 = 56,210.90/x
  3. Step 3: Cross multiply
    72,277.15x = 108,218.89 × 56,210.90
  4. Step 4: Simplify right side
    72,277.15x = 6,083,081,203.90
  5. Step 5: Solve for x
    x = 6,083,081,203.90/72,277.15
  6. Step 6: Final answer
    x = 84,163.27

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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.