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Finding the Fourth Proportional to 64,311.50, 88,749.90 and 36,017.20

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Solution

The fourth proportional to 64,311.50, 88,749.90 and 36,017.20 is: 49,703.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,311.50 : 88,749.90 = 36,017.20 : x
  2. Step 2: Convert to fraction form
    64,311.50/88,749.90 = 36,017.20/x
  3. Step 3: Cross multiply
    64,311.50x = 88,749.90 × 36,017.20
  4. Step 4: Simplify right side
    64,311.50x = 3,196,522,454.53
  5. Step 5: Solve for x
    x = 3,196,522,454.53/64,311.50
  6. Step 6: Final answer
    x = 49,703.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.