Home / 90,710.69-125,183.45-54,907.25

Finding the Fourth Proportional to 90,710.69, 125,183.45 and 54,907.25

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Solution

The fourth proportional to 90,710.69, 125,183.45 and 54,907.25 is: 75,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,710.69 : 125,183.45 = 54,907.25 : x
  2. Step 2: Convert to fraction form
    90,710.69/125,183.45 = 54,907.25/x
  3. Step 3: Cross multiply
    90,710.69x = 125,183.45 × 54,907.25
  4. Step 4: Simplify right side
    90,710.69x = 6,873,478,985.01
  5. Step 5: Solve for x
    x = 6,873,478,985.01/90,710.69
  6. Step 6: Final answer
    x = 75,773.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.