Home / 72,360.20-99,869.44-42,163.42

Finding the Fourth Proportional to 72,360.20, 99,869.44 and 42,163.42

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Solution

The fourth proportional to 72,360.20, 99,869.44 and 42,163.42 is: 58,192.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,360.20 : 99,869.44 = 42,163.42 : x
  2. Step 2: Convert to fraction form
    72,360.20/99,869.44 = 42,163.42/x
  3. Step 3: Cross multiply
    72,360.20x = 99,869.44 × 42,163.42
  4. Step 4: Simplify right side
    72,360.20x = 4,210,837,143.88
  5. Step 5: Solve for x
    x = 4,210,837,143.88/72,360.20
  6. Step 6: Final answer
    x = 58,192.72

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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.