Home / 95,140.18-131,320.47-57,416.86

Finding the Fourth Proportional to 95,140.18, 131,320.47 and 57,416.86

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Solution

The fourth proportional to 95,140.18, 131,320.47 and 57,416.86 is: 79,251.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,140.18 : 131,320.47 = 57,416.86 : x
  2. Step 2: Convert to fraction form
    95,140.18/131,320.47 = 57,416.86/x
  3. Step 3: Cross multiply
    95,140.18x = 131,320.47 × 57,416.86
  4. Step 4: Simplify right side
    95,140.18x = 7,540,009,041.12
  5. Step 5: Solve for x
    x = 7,540,009,041.12/95,140.18
  6. Step 6: Final answer
    x = 79,251.57

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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.