Home / 87,528.03-120,806.54-56,939.32

Finding the Fourth Proportional to 87,528.03, 120,806.54 and 56,939.32

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Solution

The fourth proportional to 87,528.03, 120,806.54 and 56,939.32 is: 78,587.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,528.03 : 120,806.54 = 56,939.32 : x
  2. Step 2: Convert to fraction form
    87,528.03/120,806.54 = 56,939.32/x
  3. Step 3: Cross multiply
    87,528.03x = 120,806.54 × 56,939.32
  4. Step 4: Simplify right side
    87,528.03x = 6,878,642,239.15
  5. Step 5: Solve for x
    x = 6,878,642,239.15/87,528.03
  6. Step 6: Final answer
    x = 78,587.88

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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.