Home / 74,447.19-102,737.81-40,455.69

Finding the Fourth Proportional to 74,447.19, 102,737.81 and 40,455.69

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Solution

The fourth proportional to 74,447.19, 102,737.81 and 40,455.69 is: 55,829.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,447.19 : 102,737.81 = 40,455.69 : x
  2. Step 2: Convert to fraction form
    74,447.19/102,737.81 = 40,455.69/x
  3. Step 3: Cross multiply
    74,447.19x = 102,737.81 × 40,455.69
  4. Step 4: Simplify right side
    74,447.19x = 4,156,328,790.36
  5. Step 5: Solve for x
    x = 4,156,328,790.36/74,447.19
  6. Step 6: Final answer
    x = 55,829.22

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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.