Home / 45,133.20-67,710.60-18,823.32

Finding the Fourth Proportional to 45,133.20, 67,710.60 and 18,823.32

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Solution

The fourth proportional to 45,133.20, 67,710.60 and 18,823.32 is: 28,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,133.20 : 67,710.60 = 18,823.32 : x
  2. Step 2: Convert to fraction form
    45,133.20/67,710.60 = 18,823.32/x
  3. Step 3: Cross multiply
    45,133.20x = 67,710.60 × 18,823.32
  4. Step 4: Simplify right side
    45,133.20x = 1,274,538,291.19
  5. Step 5: Solve for x
    x = 1,274,538,291.19/45,133.20
  6. Step 6: Final answer
    x = 28,239.48

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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.