Home / 72,302.66-99,772.98-40,471.28

Finding the Fourth Proportional to 72,302.66, 99,772.98 and 40,471.28

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Solution

The fourth proportional to 72,302.66, 99,772.98 and 40,471.28 is: 55,847.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,302.66 : 99,772.98 = 40,471.28 : x
  2. Step 2: Convert to fraction form
    72,302.66/99,772.98 = 40,471.28/x
  3. Step 3: Cross multiply
    72,302.66x = 99,772.98 × 40,471.28
  4. Step 4: Simplify right side
    72,302.66x = 4,037,940,210.01
  5. Step 5: Solve for x
    x = 4,037,940,210.01/72,302.66
  6. Step 6: Final answer
    x = 55,847.74

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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.