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Finding the Fourth Proportional to 90,620, 125,054.04 and 50,332.24

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Solution

The fourth proportional to 90,620, 125,054.04 and 50,332.24 is: 69,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,620 : 125,054.04 = 50,332.24 : x
  2. Step 2: Convert to fraction form
    90,620/125,054.04 = 50,332.24/x
  3. Step 3: Cross multiply
    90,620x = 125,054.04 × 50,332.24
  4. Step 4: Simplify right side
    90,620x = 6,294,249,954.25
  5. Step 5: Solve for x
    x = 6,294,249,954.25/90,620
  6. Step 6: Final answer
    x = 69,457.62

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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.