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Finding the Fourth Proportional to 63,195.60, 87,204.60 and 38,989.74

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Solution

The fourth proportional to 63,195.60, 87,204.60 and 38,989.74 is: 53,802.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,195.60 : 87,204.60 = 38,989.74 : x
  2. Step 2: Convert to fraction form
    63,195.60/87,204.60 = 38,989.74/x
  3. Step 3: Cross multiply
    63,195.60x = 87,204.60 × 38,989.74
  4. Step 4: Simplify right side
    63,195.60x = 3,400,084,680.80
  5. Step 5: Solve for x
    x = 3,400,084,680.80/63,195.60
  6. Step 6: Final answer
    x = 53,802.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.