Home / 90,507.87-124,898.99-50,221.31

Finding the Fourth Proportional to 90,507.87, 124,898.99 and 50,221.31

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Solution

The fourth proportional to 90,507.87, 124,898.99 and 50,221.31 is: 69,304.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,507.87 : 124,898.99 = 50,221.31 : x
  2. Step 2: Convert to fraction form
    90,507.87/124,898.99 = 50,221.31/x
  3. Step 3: Cross multiply
    90,507.87x = 124,898.99 × 50,221.31
  4. Step 4: Simplify right side
    90,507.87x = 6,272,590,019.88
  5. Step 5: Solve for x
    x = 6,272,590,019.88/90,507.87
  6. Step 6: Final answer
    x = 69,304.36

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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.