Home / 65,830.24-98,751.36-21,445.60

Finding the Fourth Proportional to 65,830.24, 98,751.36 and 21,445.60

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Solution

The fourth proportional to 65,830.24, 98,751.36 and 21,445.60 is: 32,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,830.24 : 98,751.36 = 21,445.60 : x
  2. Step 2: Convert to fraction form
    65,830.24/98,751.36 = 21,445.60/x
  3. Step 3: Cross multiply
    65,830.24x = 98,751.36 × 21,445.60
  4. Step 4: Simplify right side
    65,830.24x = 2,117,782,166.02
  5. Step 5: Solve for x
    x = 2,117,782,166.02/65,830.24
  6. Step 6: Final answer
    x = 32,170.35

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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.