Home / 90,306.37-135,465.33-30,332.42

Finding the Fourth Proportional to 90,306.37, 135,465.33 and 30,332.42

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Solution

The fourth proportional to 90,306.37, 135,465.33 and 30,332.42 is: 45,500.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,306.37 : 135,465.33 = 30,332.42 : x
  2. Step 2: Convert to fraction form
    90,306.37/135,465.33 = 30,332.42/x
  3. Step 3: Cross multiply
    90,306.37x = 135,465.33 × 30,332.42
  4. Step 4: Simplify right side
    90,306.37x = 4,108,991,285.00
  5. Step 5: Solve for x
    x = 4,108,991,285.00/90,306.37
  6. Step 6: Final answer
    x = 45,500.57

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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.