Home / 87,300.45-120,471.44-53,365.77

Finding the Fourth Proportional to 87,300.45, 120,471.44 and 53,365.77

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Solution

The fourth proportional to 87,300.45, 120,471.44 and 53,365.77 is: 73,642.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,300.45 : 120,471.44 = 53,365.77 : x
  2. Step 2: Convert to fraction form
    87,300.45/120,471.44 = 53,365.77/x
  3. Step 3: Cross multiply
    87,300.45x = 120,471.44 × 53,365.77
  4. Step 4: Simplify right side
    87,300.45x = 6,429,050,891.78
  5. Step 5: Solve for x
    x = 6,429,050,891.78/87,300.45
  6. Step 6: Final answer
    x = 73,642.82

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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.