Home / 72,006.16-99,366.18-39,299.32

Finding the Fourth Proportional to 72,006.16, 99,366.18 and 39,299.32

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Solution

The fourth proportional to 72,006.16, 99,366.18 and 39,299.32 is: 54,231.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006.16 : 99,366.18 = 39,299.32 : x
  2. Step 2: Convert to fraction form
    72,006.16/99,366.18 = 39,299.32/x
  3. Step 3: Cross multiply
    72,006.16x = 99,366.18 × 39,299.32
  4. Step 4: Simplify right side
    72,006.16x = 3,905,023,305.00
  5. Step 5: Solve for x
    x = 3,905,023,305.00/72,006.16
  6. Step 6: Final answer
    x = 54,231.79

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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.