Home / 74,622.88-102,981.42-40,633.23

Finding the Fourth Proportional to 74,622.88, 102,981.42 and 40,633.23

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Solution

The fourth proportional to 74,622.88, 102,981.42 and 40,633.23 is: 56,074.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622.88 : 102,981.42 = 40,633.23 : x
  2. Step 2: Convert to fraction form
    74,622.88/102,981.42 = 40,633.23/x
  3. Step 3: Cross multiply
    74,622.88x = 102,981.42 × 40,633.23
  4. Step 4: Simplify right side
    74,622.88x = 4,184,467,006.51
  5. Step 5: Solve for x
    x = 4,184,467,006.51/74,622.88
  6. Step 6: Final answer
    x = 56,074.86

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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.