Home / 45,265.59-67,840.88-20,304.63

Finding the Fourth Proportional to 45,265.59, 67,840.88 and 20,304.63

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Solution

The fourth proportional to 45,265.59, 67,840.88 and 20,304.63 is: 30,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,265.59 : 67,840.88 = 20,304.63 : x
  2. Step 2: Convert to fraction form
    45,265.59/67,840.88 = 20,304.63/x
  3. Step 3: Cross multiply
    45,265.59x = 67,840.88 × 20,304.63
  4. Step 4: Simplify right side
    45,265.59x = 1,377,483,865.75
  5. Step 5: Solve for x
    x = 1,377,483,865.75/45,265.59
  6. Step 6: Final answer
    x = 30,431.15

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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.