Home / 74,265.46-111,404.77-20,957.91

Finding the Fourth Proportional to 74,265.46, 111,404.77 and 20,957.91

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Solution

The fourth proportional to 74,265.46, 111,404.77 and 20,957.91 is: 31,438.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,265.46 : 111,404.77 = 20,957.91 : x
  2. Step 2: Convert to fraction form
    74,265.46/111,404.77 = 20,957.91/x
  3. Step 3: Cross multiply
    74,265.46x = 111,404.77 × 20,957.91
  4. Step 4: Simplify right side
    74,265.46x = 2,334,811,143.23
  5. Step 5: Solve for x
    x = 2,334,811,143.23/74,265.46
  6. Step 6: Final answer
    x = 31,438.72

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1.5x scale

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.