Home / 87,730.86-121,061.22-51,914.64

Finding the Fourth Proportional to 87,730.86, 121,061.22 and 51,914.64

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Solution

The fourth proportional to 87,730.86, 121,061.22 and 51,914.64 is: 71,637.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,730.86 : 121,061.22 = 51,914.64 : x
  2. Step 2: Convert to fraction form
    87,730.86/121,061.22 = 51,914.64/x
  3. Step 3: Cross multiply
    87,730.86x = 121,061.22 × 51,914.64
  4. Step 4: Simplify right side
    87,730.86x = 6,284,849,654.26
  5. Step 5: Solve for x
    x = 6,284,849,654.26/87,730.86
  6. Step 6: Final answer
    x = 71,637.84

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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.