Home / 75,869.72-113,816.93-28,488.47

Finding the Fourth Proportional to 75,869.72, 113,816.93 and 28,488.47

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Solution

The fourth proportional to 75,869.72, 113,816.93 and 28,488.47 is: 42,737.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,869.72 : 113,816.93 = 28,488.47 : x
  2. Step 2: Convert to fraction form
    75,869.72/113,816.93 = 28,488.47/x
  3. Step 3: Cross multiply
    75,869.72x = 113,816.93 × 28,488.47
  4. Step 4: Simplify right side
    75,869.72x = 3,242,470,551.56
  5. Step 5: Solve for x
    x = 3,242,470,551.56/75,869.72
  6. Step 6: Final answer
    x = 42,737.35

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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.