Home / 74,132.34-102,302.44-40,140.86

Finding the Fourth Proportional to 74,132.34, 102,302.44 and 40,140.86

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Solution

The fourth proportional to 74,132.34, 102,302.44 and 40,140.86 is: 55,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,132.34 : 102,302.44 = 40,140.86 : x
  2. Step 2: Convert to fraction form
    74,132.34/102,302.44 = 40,140.86/x
  3. Step 3: Cross multiply
    74,132.34x = 102,302.44 × 40,140.86
  4. Step 4: Simplify right side
    74,132.34x = 4,106,507,309.83
  5. Step 5: Solve for x
    x = 4,106,507,309.83/74,132.34
  6. Step 6: Final answer
    x = 55,394.28

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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.