Home / 45,306.60-67,938.12-19,004.28

Finding the Fourth Proportional to 45,306.60, 67,938.12 and 19,004.28

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Solution

The fourth proportional to 45,306.60, 67,938.12 and 19,004.28 is: 28,497.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,306.60 : 67,938.12 = 19,004.28 : x
  2. Step 2: Convert to fraction form
    45,306.60/67,938.12 = 19,004.28/x
  3. Step 3: Cross multiply
    45,306.60x = 67,938.12 × 19,004.28
  4. Step 4: Simplify right side
    45,306.60x = 1,291,115,055.15
  5. Step 5: Solve for x
    x = 1,291,115,055.15/45,306.60
  6. Step 6: Final answer
    x = 28,497.28

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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.