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Finding the Fourth Proportional to 65,220.20, 97,825.51 and 20,835.03

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Solution

The fourth proportional to 65,220.20, 97,825.51 and 20,835.03 is: 31,251.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,220.20 : 97,825.51 = 20,835.03 : x
  2. Step 2: Convert to fraction form
    65,220.20/97,825.51 = 20,835.03/x
  3. Step 3: Cross multiply
    65,220.20x = 97,825.51 × 20,835.03
  4. Step 4: Simplify right side
    65,220.20x = 2,038,197,435.62
  5. Step 5: Solve for x
    x = 2,038,197,435.62/65,220.20
  6. Step 6: Final answer
    x = 31,251.01

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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.