Home / 90,666.48-125,118.09-50,379.51

Finding the Fourth Proportional to 90,666.48, 125,118.09 and 50,379.51

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Solution

The fourth proportional to 90,666.48, 125,118.09 and 50,379.51 is: 69,522.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,666.48 : 125,118.09 = 50,379.51 : x
  2. Step 2: Convert to fraction form
    90,666.48/125,118.09 = 50,379.51/x
  3. Step 3: Cross multiply
    90,666.48x = 125,118.09 × 50,379.51
  4. Step 4: Simplify right side
    90,666.48x = 6,303,388,066.34
  5. Step 5: Solve for x
    x = 6,303,388,066.34/90,666.48
  6. Step 6: Final answer
    x = 69,522.81

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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.