Home / 90,108.34-124,344.48-49,819.75

Finding the Fourth Proportional to 90,108.34, 124,344.48 and 49,819.75

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Solution

The fourth proportional to 90,108.34, 124,344.48 and 49,819.75 is: 68,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,108.34 : 124,344.48 = 49,819.75 : x
  2. Step 2: Convert to fraction form
    90,108.34/124,344.48 = 49,819.75/x
  3. Step 3: Cross multiply
    90,108.34x = 124,344.48 × 49,819.75
  4. Step 4: Simplify right side
    90,108.34x = 6,194,810,285.76
  5. Step 5: Solve for x
    x = 6,194,810,285.76/90,108.34
  6. Step 6: Final answer
    x = 68,748.47

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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.