Home / 87,116.16-120,175.99-56,919.16

Finding the Fourth Proportional to 87,116.16, 120,175.99 and 56,919.16

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Solution

The fourth proportional to 87,116.16, 120,175.99 and 56,919.16 is: 78,519.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,116.16 : 120,175.99 = 56,919.16 : x
  2. Step 2: Convert to fraction form
    87,116.16/120,175.99 = 56,919.16/x
  3. Step 3: Cross multiply
    87,116.16x = 120,175.99 × 56,919.16
  4. Step 4: Simplify right side
    87,116.16x = 6,840,316,410.89
  5. Step 5: Solve for x
    x = 6,840,316,410.89/87,116.16
  6. Step 6: Final answer
    x = 78,519.49

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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.