Home / 90,240.42-135,315.06-52,811.74

Finding the Fourth Proportional to 90,240.42, 135,315.06 and 52,811.74

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Solution

The fourth proportional to 90,240.42, 135,315.06 and 52,811.74 is: 79,190.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,240.42 : 135,315.06 = 52,811.74 : x
  2. Step 2: Convert to fraction form
    90,240.42/135,315.06 = 52,811.74/x
  3. Step 3: Cross multiply
    90,240.42x = 135,315.06 × 52,811.74
  4. Step 4: Simplify right side
    90,240.42x = 7,146,223,222.26
  5. Step 5: Solve for x
    x = 7,146,223,222.26/90,240.42
  6. Step 6: Final answer
    x = 79,190.94

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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.