Home / 87,268.86-120,395.16-55,426.14

Finding the Fourth Proportional to 87,268.86, 120,395.16 and 55,426.14

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Solution

The fourth proportional to 87,268.86, 120,395.16 and 55,426.14 is: 76,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,268.86 : 120,395.16 = 55,426.14 : x
  2. Step 2: Convert to fraction form
    87,268.86/120,395.16 = 55,426.14/x
  3. Step 3: Cross multiply
    87,268.86x = 120,395.16 × 55,426.14
  4. Step 4: Simplify right side
    87,268.86x = 6,673,038,993.48
  5. Step 5: Solve for x
    x = 6,673,038,993.48/87,268.86
  6. Step 6: Final answer
    x = 76,465.29

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1.5x scale

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.