Home / 72,361.45-99,864.10-43,688.17

Finding the Fourth Proportional to 72,361.45, 99,864.10 and 43,688.17

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Solution

The fourth proportional to 72,361.45, 99,864.10 and 43,688.17 is: 60,292.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,361.45 : 99,864.10 = 43,688.17 : x
  2. Step 2: Convert to fraction form
    72,361.45/99,864.10 = 43,688.17/x
  3. Step 3: Cross multiply
    72,361.45x = 99,864.10 × 43,688.17
  4. Step 4: Simplify right side
    72,361.45x = 4,362,879,777.70
  5. Step 5: Solve for x
    x = 4,362,879,777.70/72,361.45
  6. Step 6: Final answer
    x = 60,292.87

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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.