Home / 74,640.42-102,995.96-42,364.76

Finding the Fourth Proportional to 74,640.42, 102,995.96 and 42,364.76

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Solution

The fourth proportional to 74,640.42, 102,995.96 and 42,364.76 is: 58,458.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,640.42 : 102,995.96 = 42,364.76 : x
  2. Step 2: Convert to fraction form
    74,640.42/102,995.96 = 42,364.76/x
  3. Step 3: Cross multiply
    74,640.42x = 102,995.96 × 42,364.76
  4. Step 4: Simplify right side
    74,640.42x = 4,363,398,399.57
  5. Step 5: Solve for x
    x = 4,363,398,399.57/74,640.42
  6. Step 6: Final answer
    x = 58,458.92

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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.