Home / 65,851.48-98,799.38-20,880.16

Finding the Fourth Proportional to 65,851.48, 98,799.38 and 20,880.16

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Solution

The fourth proportional to 65,851.48, 98,799.38 and 20,880.16 is: 31,327.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,851.48 : 98,799.38 = 20,880.16 : x
  2. Step 2: Convert to fraction form
    65,851.48/98,799.38 = 20,880.16/x
  3. Step 3: Cross multiply
    65,851.48x = 98,799.38 × 20,880.16
  4. Step 4: Simplify right side
    65,851.48x = 2,062,946,862.30
  5. Step 5: Solve for x
    x = 2,062,946,862.30/65,851.48
  6. Step 6: Final answer
    x = 31,327.27

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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.