Home / 45,630.47-68,445.43-18,612.71

Finding the Fourth Proportional to 45,630.47, 68,445.43 and 18,612.71

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Solution

The fourth proportional to 45,630.47, 68,445.43 and 18,612.71 is: 27,918.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,630.47 : 68,445.43 = 18,612.71 : x
  2. Step 2: Convert to fraction form
    45,630.47/68,445.43 = 18,612.71/x
  3. Step 3: Cross multiply
    45,630.47x = 68,445.43 × 18,612.71
  4. Step 4: Simplify right side
    45,630.47x = 1,273,954,807.33
  5. Step 5: Solve for x
    x = 1,273,954,807.33/45,630.47
  6. Step 6: Final answer
    x = 27,918.95

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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.