Home / 87,985.64-121,426.62-50,259.08

Finding the Fourth Proportional to 87,985.64, 121,426.62 and 50,259.08

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Solution

The fourth proportional to 87,985.64, 121,426.62 and 50,259.08 is: 69,361.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,985.64 : 121,426.62 = 50,259.08 : x
  2. Step 2: Convert to fraction form
    87,985.64/121,426.62 = 50,259.08/x
  3. Step 3: Cross multiply
    87,985.64x = 121,426.62 × 50,259.08
  4. Step 4: Simplify right side
    87,985.64x = 6,102,790,208.71
  5. Step 5: Solve for x
    x = 6,102,790,208.71/87,985.64
  6. Step 6: Final answer
    x = 69,361.21

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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.