Home / 78,404.44-117,624.90-25,814.38

Finding the Fourth Proportional to 78,404.44, 117,624.90 and 25,814.38

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Solution

The fourth proportional to 78,404.44, 117,624.90 and 25,814.38 is: 38,727.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,404.44 : 117,624.90 = 25,814.38 : x
  2. Step 2: Convert to fraction form
    78,404.44/117,624.90 = 25,814.38/x
  3. Step 3: Cross multiply
    78,404.44x = 117,624.90 × 25,814.38
  4. Step 4: Simplify right side
    78,404.44x = 3,036,413,866.06
  5. Step 5: Solve for x
    x = 3,036,413,866.06/78,404.44
  6. Step 6: Final answer
    x = 38,727.58

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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.