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Finding the Fourth Proportional to 65,999.70, 99,145.35 and 64,250.10

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Solution

The fourth proportional to 65,999.70, 99,145.35 and 64,250.10 is: 96,517.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,999.70 : 99,145.35 = 64,250.10 : x
  2. Step 2: Convert to fraction form
    65,999.70/99,145.35 = 64,250.10/x
  3. Step 3: Cross multiply
    65,999.70x = 99,145.35 × 64,250.10
  4. Step 4: Simplify right side
    65,999.70x = 6,370,098,652.04
  5. Step 5: Solve for x
    x = 6,370,098,652.04/65,999.70
  6. Step 6: Final answer
    x = 96,517.08

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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.