Home / 86,207.86-118,983.18-53,957.44

Finding the Fourth Proportional to 86,207.86, 118,983.18 and 53,957.44

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Solution

The fourth proportional to 86,207.86, 118,983.18 and 53,957.44 is: 74,471.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,207.86 : 118,983.18 = 53,957.44 : x
  2. Step 2: Convert to fraction form
    86,207.86/118,983.18 = 53,957.44/x
  3. Step 3: Cross multiply
    86,207.86x = 118,983.18 × 53,957.44
  4. Step 4: Simplify right side
    86,207.86x = 6,420,027,795.86
  5. Step 5: Solve for x
    x = 6,420,027,795.86/86,207.86
  6. Step 6: Final answer
    x = 74,471.49

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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.