Home / 90,100.54-124,337.86-49,815.28

Finding the Fourth Proportional to 90,100.54, 124,337.86 and 49,815.28

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Solution

The fourth proportional to 90,100.54, 124,337.86 and 49,815.28 is: 68,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,100.54 : 124,337.86 = 49,815.28 : x
  2. Step 2: Convert to fraction form
    90,100.54/124,337.86 = 49,815.28/x
  3. Step 3: Cross multiply
    90,100.54x = 124,337.86 × 49,815.28
  4. Step 4: Simplify right side
    90,100.54x = 6,193,925,310.50
  5. Step 5: Solve for x
    x = 6,193,925,310.50/90,100.54
  6. Step 6: Final answer
    x = 68,744.60

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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.