Home / 72,361.10-99,862.92-40,531.94

Finding the Fourth Proportional to 72,361.10, 99,862.92 and 40,531.94

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Solution

The fourth proportional to 72,361.10, 99,862.92 and 40,531.94 is: 55,936.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,361.10 : 99,862.92 = 40,531.94 : x
  2. Step 2: Convert to fraction form
    72,361.10/99,862.92 = 40,531.94/x
  3. Step 3: Cross multiply
    72,361.10x = 99,862.92 × 40,531.94
  4. Step 4: Simplify right side
    72,361.10x = 4,047,637,679.01
  5. Step 5: Solve for x
    x = 4,047,637,679.01/72,361.10
  6. Step 6: Final answer
    x = 55,936.66

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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.