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Finding the Fourth Proportional to 64,015.92, 88,311.06 and 40,133.88

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Solution

The fourth proportional to 64,015.92, 88,311.06 and 40,133.88 is: 55,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,015.92 : 88,311.06 = 40,133.88 : x
  2. Step 2: Convert to fraction form
    64,015.92/88,311.06 = 40,133.88/x
  3. Step 3: Cross multiply
    64,015.92x = 88,311.06 × 40,133.88
  4. Step 4: Simplify right side
    64,015.92x = 3,544,265,484.71
  5. Step 5: Solve for x
    x = 3,544,265,484.71/64,015.92
  6. Step 6: Final answer
    x = 55,365.38

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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.