Home / 75,688.36-113,415.74-47,928.04

Finding the Fourth Proportional to 75,688.36, 113,415.74 and 47,928.04

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Solution

The fourth proportional to 75,688.36, 113,415.74 and 47,928.04 is: 71,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,688.36 : 113,415.74 = 47,928.04 : x
  2. Step 2: Convert to fraction form
    75,688.36/113,415.74 = 47,928.04/x
  3. Step 3: Cross multiply
    75,688.36x = 113,415.74 × 47,928.04
  4. Step 4: Simplify right side
    75,688.36x = 5,435,794,123.35
  5. Step 5: Solve for x
    x = 5,435,794,123.35/75,688.36
  6. Step 6: Final answer
    x = 71,818.10

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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.