Home / 75,315.14-103,931.39-41,322.86

Finding the Fourth Proportional to 75,315.14, 103,931.39 and 41,322.86

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Solution

The fourth proportional to 75,315.14, 103,931.39 and 41,322.86 is: 57,023.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,315.14 : 103,931.39 = 41,322.86 : x
  2. Step 2: Convert to fraction form
    75,315.14/103,931.39 = 41,322.86/x
  3. Step 3: Cross multiply
    75,315.14x = 103,931.39 × 41,322.86
  4. Step 4: Simplify right side
    75,315.14x = 4,294,742,071.96
  5. Step 5: Solve for x
    x = 4,294,742,071.96/75,315.14
  6. Step 6: Final answer
    x = 57,023.62

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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.