Home / 45,100.53-67,666.59-13,935.78

Finding the Fourth Proportional to 45,100.53, 67,666.59 and 13,935.78

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Solution

The fourth proportional to 45,100.53, 67,666.59 and 13,935.78 is: 20,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,100.53 : 67,666.59 = 13,935.78 : x
  2. Step 2: Convert to fraction form
    45,100.53/67,666.59 = 13,935.78/x
  3. Step 3: Cross multiply
    45,100.53x = 67,666.59 × 13,935.78
  4. Step 4: Simplify right side
    45,100.53x = 942,986,711.59
  5. Step 5: Solve for x
    x = 942,986,711.59/45,100.53
  6. Step 6: Final answer
    x = 20,908.55

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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.