Home / 65,002.20-97,503.30-31,743.60

Finding the Fourth Proportional to 65,002.20, 97,503.30 and 31,743.60

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Solution

The fourth proportional to 65,002.20, 97,503.30 and 31,743.60 is: 47,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,002.20 : 97,503.30 = 31,743.60 : x
  2. Step 2: Convert to fraction form
    65,002.20/97,503.30 = 31,743.60/x
  3. Step 3: Cross multiply
    65,002.20x = 97,503.30 × 31,743.60
  4. Step 4: Simplify right side
    65,002.20x = 3,095,105,753.88
  5. Step 5: Solve for x
    x = 3,095,105,753.88/65,002.20
  6. Step 6: Final answer
    x = 47,615.40

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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.