Home / 72,361.16-99,857.23-40,529.96

Finding the Fourth Proportional to 72,361.16, 99,857.23 and 40,529.96

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Solution

The fourth proportional to 72,361.16, 99,857.23 and 40,529.96 is: 55,930.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,361.16 : 99,857.23 = 40,529.96 : x
  2. Step 2: Convert to fraction form
    72,361.16/99,857.23 = 40,529.96/x
  3. Step 3: Cross multiply
    72,361.16x = 99,857.23 × 40,529.96
  4. Step 4: Simplify right side
    72,361.16x = 4,047,208,937.00
  5. Step 5: Solve for x
    x = 4,047,208,937.00/72,361.16
  6. Step 6: Final answer
    x = 55,930.68

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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.