Home / 87,039.36-120,124.28-48,809.22

Finding the Fourth Proportional to 87,039.36, 120,124.28 and 48,809.22

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Solution

The fourth proportional to 87,039.36, 120,124.28 and 48,809.22 is: 67,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,039.36 : 120,124.28 = 48,809.22 : x
  2. Step 2: Convert to fraction form
    87,039.36/120,124.28 = 48,809.22/x
  3. Step 3: Cross multiply
    87,039.36x = 120,124.28 × 48,809.22
  4. Step 4: Simplify right side
    87,039.36x = 5,863,172,081.42
  5. Step 5: Solve for x
    x = 5,863,172,081.42/87,039.36
  6. Step 6: Final answer
    x = 67,362.31

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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.