Home / 90,244.06-135,276.84-42,775.80

Finding the Fourth Proportional to 90,244.06, 135,276.84 and 42,775.80

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Solution

The fourth proportional to 90,244.06, 135,276.84 and 42,775.80 is: 64,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,244.06 : 135,276.84 = 42,775.80 : x
  2. Step 2: Convert to fraction form
    90,244.06/135,276.84 = 42,775.80/x
  3. Step 3: Cross multiply
    90,244.06x = 135,276.84 × 42,775.80
  4. Step 4: Simplify right side
    90,244.06x = 5,786,575,052.47
  5. Step 5: Solve for x
    x = 5,786,575,052.47/90,244.06
  6. Step 6: Final answer
    x = 64,121.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.