Home / 65,445.47-98,168.20-21,076.71

Finding the Fourth Proportional to 65,445.47, 98,168.20 and 21,076.71

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Solution

The fourth proportional to 65,445.47, 98,168.20 and 21,076.71 is: 31,615.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,445.47 : 98,168.20 = 21,076.71 : x
  2. Step 2: Convert to fraction form
    65,445.47/98,168.20 = 21,076.71/x
  3. Step 3: Cross multiply
    65,445.47x = 98,168.20 × 21,076.71
  4. Step 4: Simplify right side
    65,445.47x = 2,069,062,380.36
  5. Step 5: Solve for x
    x = 2,069,062,380.36/65,445.47
  6. Step 6: Final answer
    x = 31,615.06

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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.