Home / 74,748.56-103,153.80-40,756.76

Finding the Fourth Proportional to 74,748.56, 103,153.80 and 40,756.76

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Solution

The fourth proportional to 74,748.56, 103,153.80 and 40,756.76 is: 56,244.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,748.56 : 103,153.80 = 40,756.76 : x
  2. Step 2: Convert to fraction form
    74,748.56/103,153.80 = 40,756.76/x
  3. Step 3: Cross multiply
    74,748.56x = 103,153.80 × 40,756.76
  4. Step 4: Simplify right side
    74,748.56x = 4,204,214,669.69
  5. Step 5: Solve for x
    x = 4,204,214,669.69/74,748.56
  6. Step 6: Final answer
    x = 56,244.76

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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.