Home / 65,106.12-89,685.96-55,514.88

Finding the Fourth Proportional to 65,106.12, 89,685.96 and 55,514.88

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Solution

The fourth proportional to 65,106.12, 89,685.96 and 55,514.88 is: 76,473.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,106.12 : 89,685.96 = 55,514.88 : x
  2. Step 2: Convert to fraction form
    65,106.12/89,685.96 = 55,514.88/x
  3. Step 3: Cross multiply
    65,106.12x = 89,685.96 × 55,514.88
  4. Step 4: Simplify right side
    65,106.12x = 4,978,905,307.08
  5. Step 5: Solve for x
    x = 4,978,905,307.08/65,106.12
  6. Step 6: Final answer
    x = 76,473.69

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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.