Home / 77,763.20-107,339.16-52,261.04

Finding the Fourth Proportional to 77,763.20, 107,339.16 and 52,261.04

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Solution

The fourth proportional to 77,763.20, 107,339.16 and 52,261.04 is: 72,137.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,763.20 : 107,339.16 = 52,261.04 : x
  2. Step 2: Convert to fraction form
    77,763.20/107,339.16 = 52,261.04/x
  3. Step 3: Cross multiply
    77,763.20x = 107,339.16 × 52,261.04
  4. Step 4: Simplify right side
    77,763.20x = 5,609,656,134.33
  5. Step 5: Solve for x
    x = 5,609,656,134.33/77,763.20
  6. Step 6: Final answer
    x = 72,137.67

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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.