Home / 90,502.89-124,892.07-50,215.79

Finding the Fourth Proportional to 90,502.89, 124,892.07 and 50,215.79

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Solution

The fourth proportional to 90,502.89, 124,892.07 and 50,215.79 is: 69,296.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,502.89 : 124,892.07 = 50,215.79 : x
  2. Step 2: Convert to fraction form
    90,502.89/124,892.07 = 50,215.79/x
  3. Step 3: Cross multiply
    90,502.89x = 124,892.07 × 50,215.79
  4. Step 4: Simplify right side
    90,502.89x = 6,271,553,335.32
  5. Step 5: Solve for x
    x = 6,271,553,335.32/90,502.89
  6. Step 6: Final answer
    x = 69,296.72

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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.