Home / 45,008.56-67,429.00-28,146.79

Finding the Fourth Proportional to 45,008.56, 67,429.00 and 28,146.79

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Solution

The fourth proportional to 45,008.56, 67,429.00 and 28,146.79 is: 42,167.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,008.56 : 67,429.00 = 28,146.79 : x
  2. Step 2: Convert to fraction form
    45,008.56/67,429.00 = 28,146.79/x
  3. Step 3: Cross multiply
    45,008.56x = 67,429.00 × 28,146.79
  4. Step 4: Simplify right side
    45,008.56x = 1,897,909,425.03
  5. Step 5: Solve for x
    x = 1,897,909,425.03/45,008.56
  6. Step 6: Final answer
    x = 42,167.75

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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.