Home / 90,669.84-125,120.04-50,386.32

Finding the Fourth Proportional to 90,669.84, 125,120.04 and 50,386.32

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Solution

The fourth proportional to 90,669.84, 125,120.04 and 50,386.32 is: 69,530.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,669.84 : 125,120.04 = 50,386.32 : x
  2. Step 2: Convert to fraction form
    90,669.84/125,120.04 = 50,386.32/x
  3. Step 3: Cross multiply
    90,669.84x = 125,120.04 × 50,386.32
  4. Step 4: Simplify right side
    90,669.84x = 6,304,338,373.85
  5. Step 5: Solve for x
    x = 6,304,338,373.85/90,669.84
  6. Step 6: Final answer
    x = 69,530.71

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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.