Home / 90,240.17-135,314.69-52,811.49

Finding the Fourth Proportional to 90,240.17, 135,314.69 and 52,811.49

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Solution

The fourth proportional to 90,240.17, 135,314.69 and 52,811.49 is: 79,190.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,240.17 : 135,314.69 = 52,811.49 : x
  2. Step 2: Convert to fraction form
    90,240.17/135,314.69 = 52,811.49/x
  3. Step 3: Cross multiply
    90,240.17x = 135,314.69 × 52,811.49
  4. Step 4: Simplify right side
    90,240.17x = 7,146,169,589.19
  5. Step 5: Solve for x
    x = 7,146,169,589.19/90,240.17
  6. Step 6: Final answer
    x = 79,190.56

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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.