Home / 90,408.15-135,532.34-34,209.24

Finding the Fourth Proportional to 90,408.15, 135,532.34 and 34,209.24

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Solution

The fourth proportional to 90,408.15, 135,532.34 and 34,209.24 is: 51,283.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,408.15 : 135,532.34 = 34,209.24 : x
  2. Step 2: Convert to fraction form
    90,408.15/135,532.34 = 34,209.24/x
  3. Step 3: Cross multiply
    90,408.15x = 135,532.34 × 34,209.24
  4. Step 4: Simplify right side
    90,408.15x = 4,636,457,795.81
  5. Step 5: Solve for x
    x = 4,636,457,795.81/90,408.15
  6. Step 6: Final answer
    x = 51,283.63

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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.