Home / 78,180.12-107,889.84-44,191.32

Finding the Fourth Proportional to 78,180.12, 107,889.84 and 44,191.32

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Solution

The fourth proportional to 78,180.12, 107,889.84 and 44,191.32 is: 60,984.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,180.12 : 107,889.84 = 44,191.32 : x
  2. Step 2: Convert to fraction form
    78,180.12/107,889.84 = 44,191.32/x
  3. Step 3: Cross multiply
    78,180.12x = 107,889.84 × 44,191.32
  4. Step 4: Simplify right side
    78,180.12x = 4,767,794,444.19
  5. Step 5: Solve for x
    x = 4,767,794,444.19/78,180.12
  6. Step 6: Final answer
    x = 60,984.74

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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.