Home / 90,684.04-125,142.43-50,396.77

Finding the Fourth Proportional to 90,684.04, 125,142.43 and 50,396.77

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Solution

The fourth proportional to 90,684.04, 125,142.43 and 50,396.77 is: 69,546.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,684.04 : 125,142.43 = 50,396.77 : x
  2. Step 2: Convert to fraction form
    90,684.04/125,142.43 = 50,396.77/x
  3. Step 3: Cross multiply
    90,684.04x = 125,142.43 × 50,396.77
  4. Step 4: Simplify right side
    90,684.04x = 6,306,774,261.95
  5. Step 5: Solve for x
    x = 6,306,774,261.95/90,684.04
  6. Step 6: Final answer
    x = 69,546.68

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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.