Home / 77,455.73-115,996.01-39,404.90

Finding the Fourth Proportional to 77,455.73, 115,996.01 and 39,404.90

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Solution

The fourth proportional to 77,455.73, 115,996.01 and 39,404.90 is: 59,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,455.73 : 115,996.01 = 39,404.90 : x
  2. Step 2: Convert to fraction form
    77,455.73/115,996.01 = 39,404.90/x
  3. Step 3: Cross multiply
    77,455.73x = 115,996.01 × 39,404.90
  4. Step 4: Simplify right side
    77,455.73x = 4,570,810,397.44
  5. Step 5: Solve for x
    x = 4,570,810,397.44/77,455.73
  6. Step 6: Final answer
    x = 59,011.91

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1.5x scale

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.