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Finding the Fourth Proportional to 87,256.82, 120,411.06 and 53,322.07

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Solution

The fourth proportional to 87,256.82, 120,411.06 and 53,322.07 is: 73,582.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,256.82 : 120,411.06 = 53,322.07 : x
  2. Step 2: Convert to fraction form
    87,256.82/120,411.06 = 53,322.07/x
  3. Step 3: Cross multiply
    87,256.82x = 120,411.06 × 53,322.07
  4. Step 4: Simplify right side
    87,256.82x = 6,420,566,970.09
  5. Step 5: Solve for x
    x = 6,420,566,970.09/87,256.82
  6. Step 6: Final answer
    x = 73,582.41

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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.