Home / 73,265.18-109,903.10-31,140.45

Finding the Fourth Proportional to 73,265.18, 109,903.10 and 31,140.45

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Solution

The fourth proportional to 73,265.18, 109,903.10 and 31,140.45 is: 46,712.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,265.18 : 109,903.10 = 31,140.45 : x
  2. Step 2: Convert to fraction form
    73,265.18/109,903.10 = 31,140.45/x
  3. Step 3: Cross multiply
    73,265.18x = 109,903.10 × 31,140.45
  4. Step 4: Simplify right side
    73,265.18x = 3,422,431,834.69
  5. Step 5: Solve for x
    x = 3,422,431,834.69/73,265.18
  6. Step 6: Final answer
    x = 46,712.94

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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.