Home / 74,715.19-112,082.50-30,343.39

Finding the Fourth Proportional to 74,715.19, 112,082.50 and 30,343.39

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Solution

The fourth proportional to 74,715.19, 112,082.50 and 30,343.39 is: 45,519.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,715.19 : 112,082.50 = 30,343.39 : x
  2. Step 2: Convert to fraction form
    74,715.19/112,082.50 = 30,343.39/x
  3. Step 3: Cross multiply
    74,715.19x = 112,082.50 × 30,343.39
  4. Step 4: Simplify right side
    74,715.19x = 3,400,963,009.68
  5. Step 5: Solve for x
    x = 3,400,963,009.68/74,715.19
  6. Step 6: Final answer
    x = 45,519.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.