Home / 74,235.30-102,444.81-40,243.98

Finding the Fourth Proportional to 74,235.30, 102,444.81 and 40,243.98

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Solution

The fourth proportional to 74,235.30, 102,444.81 and 40,243.98 is: 55,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,235.30 : 102,444.81 = 40,243.98 : x
  2. Step 2: Convert to fraction form
    74,235.30/102,444.81 = 40,243.98/x
  3. Step 3: Cross multiply
    74,235.30x = 102,444.81 × 40,243.98
  4. Step 4: Simplify right side
    74,235.30x = 4,122,786,884.74
  5. Step 5: Solve for x
    x = 4,122,786,884.74/74,235.30
  6. Step 6: Final answer
    x = 55,536.74

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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.