Home / 90,322.07-135,409.26-34,130.35

Finding the Fourth Proportional to 90,322.07, 135,409.26 and 34,130.35

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Solution

The fourth proportional to 90,322.07, 135,409.26 and 34,130.35 is: 51,167.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,322.07 : 135,409.26 = 34,130.35 : x
  2. Step 2: Convert to fraction form
    90,322.07/135,409.26 = 34,130.35/x
  3. Step 3: Cross multiply
    90,322.07x = 135,409.26 × 34,130.35
  4. Step 4: Simplify right side
    90,322.07x = 4,621,564,759.99
  5. Step 5: Solve for x
    x = 4,621,564,759.99/90,322.07
  6. Step 6: Final answer
    x = 51,167.61

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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.