Home / 90,235.10-124,523.70-49,948.94

Finding the Fourth Proportional to 90,235.10, 124,523.70 and 49,948.94

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Solution

The fourth proportional to 90,235.10, 124,523.70 and 49,948.94 is: 68,929.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,235.10 : 124,523.70 = 49,948.94 : x
  2. Step 2: Convert to fraction form
    90,235.10/124,523.70 = 49,948.94/x
  3. Step 3: Cross multiply
    90,235.10x = 124,523.70 × 49,948.94
  4. Step 4: Simplify right side
    90,235.10x = 6,219,826,819.88
  5. Step 5: Solve for x
    x = 6,219,826,819.88/90,235.10
  6. Step 6: Final answer
    x = 68,929.13

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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.