Home / 90,050.99-135,034.07-52,621.88

Finding the Fourth Proportional to 90,050.99, 135,034.07 and 52,621.88

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Solution

The fourth proportional to 90,050.99, 135,034.07 and 52,621.88 is: 78,908.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,050.99 : 135,034.07 = 52,621.88 : x
  2. Step 2: Convert to fraction form
    90,050.99/135,034.07 = 52,621.88/x
  3. Step 3: Cross multiply
    90,050.99x = 135,034.07 × 52,621.88
  4. Step 4: Simplify right side
    90,050.99x = 7,105,745,689.17
  5. Step 5: Solve for x
    x = 7,105,745,689.17/90,050.99
  6. Step 6: Final answer
    x = 78,908.03

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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.