Home / 87,231.57-120,385.64-58,599.05

Finding the Fourth Proportional to 87,231.57, 120,385.64 and 58,599.05

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Solution

The fourth proportional to 87,231.57, 120,385.64 and 58,599.05 is: 80,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,231.57 : 120,385.64 = 58,599.05 : x
  2. Step 2: Convert to fraction form
    87,231.57/120,385.64 = 58,599.05/x
  3. Step 3: Cross multiply
    87,231.57x = 120,385.64 × 58,599.05
  4. Step 4: Simplify right side
    87,231.57x = 7,054,483,682.21
  5. Step 5: Solve for x
    x = 7,054,483,682.21/87,231.57
  6. Step 6: Final answer
    x = 80,870.77

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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.