Home / 45,163.15-67,730.37-42,214.81

Finding the Fourth Proportional to 45,163.15, 67,730.37 and 42,214.81

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Solution

The fourth proportional to 45,163.15, 67,730.37 and 42,214.81 is: 63,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,163.15 : 67,730.37 = 42,214.81 : x
  2. Step 2: Convert to fraction form
    45,163.15/67,730.37 = 42,214.81/x
  3. Step 3: Cross multiply
    45,163.15x = 67,730.37 × 42,214.81
  4. Step 4: Simplify right side
    45,163.15x = 2,859,224,700.78
  5. Step 5: Solve for x
    x = 2,859,224,700.78/45,163.15
  6. Step 6: Final answer
    x = 63,308.80

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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.