Home / 90,436.37-135,636.08-34,257.11

Finding the Fourth Proportional to 90,436.37, 135,636.08 and 34,257.11

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Solution

The fourth proportional to 90,436.37, 135,636.08 and 34,257.11 is: 51,378.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,436.37 : 135,636.08 = 34,257.11 : x
  2. Step 2: Convert to fraction form
    90,436.37/135,636.08 = 34,257.11/x
  3. Step 3: Cross multiply
    90,436.37x = 135,636.08 × 34,257.11
  4. Step 4: Simplify right side
    90,436.37x = 4,646,499,263.06
  5. Step 5: Solve for x
    x = 4,646,499,263.06/90,436.37
  6. Step 6: Final answer
    x = 51,378.66

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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.