Home / 75,284.10-112,944.78-53,140.86

Finding the Fourth Proportional to 75,284.10, 112,944.78 and 53,140.86

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Solution

The fourth proportional to 75,284.10, 112,944.78 and 53,140.86 is: 79,724.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,284.10 : 112,944.78 = 53,140.86 : x
  2. Step 2: Convert to fraction form
    75,284.10/112,944.78 = 53,140.86/x
  3. Step 3: Cross multiply
    75,284.10x = 112,944.78 × 53,140.86
  4. Step 4: Simplify right side
    75,284.10x = 6,001,982,741.71
  5. Step 5: Solve for x
    x = 6,001,982,741.71/75,284.10
  6. Step 6: Final answer
    x = 79,724.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.