Home / 74,672.32-112,008.49-43,485.70

Finding the Fourth Proportional to 74,672.32, 112,008.49 and 43,485.70

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Solution

The fourth proportional to 74,672.32, 112,008.49 and 43,485.70 is: 65,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,672.32 : 112,008.49 = 43,485.70 : x
  2. Step 2: Convert to fraction form
    74,672.32/112,008.49 = 43,485.70/x
  3. Step 3: Cross multiply
    74,672.32x = 112,008.49 × 43,485.70
  4. Step 4: Simplify right side
    74,672.32x = 4,870,767,753.37
  5. Step 5: Solve for x
    x = 4,870,767,753.37/74,672.32
  6. Step 6: Final answer
    x = 65,228.56

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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.