Home / 95,421.12-131,678.64-52,978.56

Finding the Fourth Proportional to 95,421.12, 131,678.64 and 52,978.56

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Solution

The fourth proportional to 95,421.12, 131,678.64 and 52,978.56 is: 73,109.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,421.12 : 131,678.64 = 52,978.56 : x
  2. Step 2: Convert to fraction form
    95,421.12/131,678.64 = 52,978.56/x
  3. Step 3: Cross multiply
    95,421.12x = 131,678.64 × 52,978.56
  4. Step 4: Simplify right side
    95,421.12x = 6,976,144,729.96
  5. Step 5: Solve for x
    x = 6,976,144,729.96/95,421.12
  6. Step 6: Final answer
    x = 73,109.02

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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.