Home / 90,106.20-124,340.01-49,820.46

Finding the Fourth Proportional to 90,106.20, 124,340.01 and 49,820.46

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Solution

The fourth proportional to 90,106.20, 124,340.01 and 49,820.46 is: 68,748.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,106.20 : 124,340.01 = 49,820.46 : x
  2. Step 2: Convert to fraction form
    90,106.20/124,340.01 = 49,820.46/x
  3. Step 3: Cross multiply
    90,106.20x = 124,340.01 × 49,820.46
  4. Step 4: Simplify right side
    90,106.20x = 6,194,676,494.60
  5. Step 5: Solve for x
    x = 6,194,676,494.60/90,106.20
  6. Step 6: Final answer
    x = 68,748.62

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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.