Home / 74,133.34-102,303.82-40,141.86

Finding the Fourth Proportional to 74,133.34, 102,303.82 and 40,141.86

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Solution

The fourth proportional to 74,133.34, 102,303.82 and 40,141.86 is: 55,395.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,133.34 : 102,303.82 = 40,141.86 : x
  2. Step 2: Convert to fraction form
    74,133.34/102,303.82 = 40,141.86/x
  3. Step 3: Cross multiply
    74,133.34x = 102,303.82 × 40,141.86
  4. Step 4: Simplify right side
    74,133.34x = 4,106,665,619.91
  5. Step 5: Solve for x
    x = 4,106,665,619.91/74,133.34
  6. Step 6: Final answer
    x = 55,395.66

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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.