Home / 90,260.96-124,561.13-49,978.44

Finding the Fourth Proportional to 90,260.96, 124,561.13 and 49,978.44

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Solution

The fourth proportional to 90,260.96, 124,561.13 and 49,978.44 is: 68,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,260.96 : 124,561.13 = 49,978.44 : x
  2. Step 2: Convert to fraction form
    90,260.96/124,561.13 = 49,978.44/x
  3. Step 3: Cross multiply
    90,260.96x = 124,561.13 × 49,978.44
  4. Step 4: Simplify right side
    90,260.96x = 6,225,370,712.15
  5. Step 5: Solve for x
    x = 6,225,370,712.15/90,260.96
  6. Step 6: Final answer
    x = 68,970.80

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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.