Home / 77,975.36-116,952-25,385.60

Finding the Fourth Proportional to 77,975.36, 116,952 and 25,385.60

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Solution

The fourth proportional to 77,975.36, 116,952 and 25,385.60 is: 38,074.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,975.36 : 116,952 = 25,385.60 : x
  2. Step 2: Convert to fraction form
    77,975.36/116,952 = 25,385.60/x
  3. Step 3: Cross multiply
    77,975.36x = 116,952 × 25,385.60
  4. Step 4: Simplify right side
    77,975.36x = 2,968,896,691.20
  5. Step 5: Solve for x
    x = 2,968,896,691.20/77,975.36
  6. Step 6: Final answer
    x = 38,074.81

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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.