Home / 76,528.52-114,792.62-20,368.63

Finding the Fourth Proportional to 76,528.52, 114,792.62 and 20,368.63

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Solution

The fourth proportional to 76,528.52, 114,792.62 and 20,368.63 is: 30,552.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,528.52 : 114,792.62 = 20,368.63 : x
  2. Step 2: Convert to fraction form
    76,528.52/114,792.62 = 20,368.63/x
  3. Step 3: Cross multiply
    76,528.52x = 114,792.62 × 20,368.63
  4. Step 4: Simplify right side
    76,528.52x = 2,338,167,727.70
  5. Step 5: Solve for x
    x = 2,338,167,727.70/76,528.52
  6. Step 6: Final answer
    x = 30,552.89

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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.