Home / 74,385.16-102,653.62-40,853.32

Finding the Fourth Proportional to 74,385.16, 102,653.62 and 40,853.32

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Solution

The fourth proportional to 74,385.16, 102,653.62 and 40,853.32 is: 56,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,385.16 : 102,653.62 = 40,853.32 : x
  2. Step 2: Convert to fraction form
    74,385.16/102,653.62 = 40,853.32/x
  3. Step 3: Cross multiply
    74,385.16x = 102,653.62 × 40,853.32
  4. Step 4: Simplify right side
    74,385.16x = 4,193,741,187.02
  5. Step 5: Solve for x
    x = 4,193,741,187.02/74,385.16
  6. Step 6: Final answer
    x = 56,378.73

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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.