Home / 72,177.08-99,604.08-40,345.96

Finding the Fourth Proportional to 72,177.08, 99,604.08 and 40,345.96

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Solution

The fourth proportional to 72,177.08, 99,604.08 and 40,345.96 is: 55,677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,177.08 : 99,604.08 = 40,345.96 : x
  2. Step 2: Convert to fraction form
    72,177.08/99,604.08 = 40,345.96/x
  3. Step 3: Cross multiply
    72,177.08x = 99,604.08 × 40,345.96
  4. Step 4: Simplify right side
    72,177.08x = 4,018,622,227.52
  5. Step 5: Solve for x
    x = 4,018,622,227.52/72,177.08
  6. Step 6: Final answer
    x = 55,677.26

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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.