Home / 45,128.47-67,698.98-18,827.16

Finding the Fourth Proportional to 45,128.47, 67,698.98 and 18,827.16

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Solution

The fourth proportional to 45,128.47, 67,698.98 and 18,827.16 is: 28,243.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,128.47 : 67,698.98 = 18,827.16 : x
  2. Step 2: Convert to fraction form
    45,128.47/67,698.98 = 18,827.16/x
  3. Step 3: Cross multiply
    45,128.47x = 67,698.98 × 18,827.16
  4. Step 4: Simplify right side
    45,128.47x = 1,274,579,575.36
  5. Step 5: Solve for x
    x = 1,274,579,575.36/45,128.47
  6. Step 6: Final answer
    x = 28,243.36

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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.