Home / 90,957.04-125,520.64-51,213.04

Finding the Fourth Proportional to 90,957.04, 125,520.64 and 51,213.04

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Solution

The fourth proportional to 90,957.04, 125,520.64 and 51,213.04 is: 70,673.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,957.04 : 125,520.64 = 51,213.04 : x
  2. Step 2: Convert to fraction form
    90,957.04/125,520.64 = 51,213.04/x
  3. Step 3: Cross multiply
    90,957.04x = 125,520.64 × 51,213.04
  4. Step 4: Simplify right side
    90,957.04x = 6,428,293,557.15
  5. Step 5: Solve for x
    x = 6,428,293,557.15/90,957.04
  6. Step 6: Final answer
    x = 70,673.95

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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.