Home / 76,376.34-114,574.56-28,338.40

Finding the Fourth Proportional to 76,376.34, 114,574.56 and 28,338.40

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Solution

The fourth proportional to 76,376.34, 114,574.56 and 28,338.40 is: 42,511.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,376.34 : 114,574.56 = 28,338.40 : x
  2. Step 2: Convert to fraction form
    76,376.34/114,574.56 = 28,338.40/x
  3. Step 3: Cross multiply
    76,376.34x = 114,574.56 × 28,338.40
  4. Step 4: Simplify right side
    76,376.34x = 3,246,859,711.10
  5. Step 5: Solve for x
    x = 3,246,859,711.10/76,376.34
  6. Step 6: Final answer
    x = 42,511.33

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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.