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Finding the Fourth Proportional to 65,116.20, 97,677.18 and 20,746.20

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Solution

The fourth proportional to 65,116.20, 97,677.18 and 20,746.20 is: 31,120.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,116.20 : 97,677.18 = 20,746.20 : x
  2. Step 2: Convert to fraction form
    65,116.20/97,677.18 = 20,746.20/x
  3. Step 3: Cross multiply
    65,116.20x = 97,677.18 × 20,746.20
  4. Step 4: Simplify right side
    65,116.20x = 2,026,430,311.72
  5. Step 5: Solve for x
    x = 2,026,430,311.72/65,116.20
  6. Step 6: Final answer
    x = 31,120.22

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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.