Home / 90,306.88-135,466.08-30,332.92

Finding the Fourth Proportional to 90,306.88, 135,466.08 and 30,332.92

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Solution

The fourth proportional to 90,306.88, 135,466.08 and 30,332.92 is: 45,501.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,306.88 : 135,466.08 = 30,332.92 : x
  2. Step 2: Convert to fraction form
    90,306.88/135,466.08 = 30,332.92/x
  3. Step 3: Cross multiply
    90,306.88x = 135,466.08 × 30,332.92
  4. Step 4: Simplify right side
    90,306.88x = 4,109,081,767.35
  5. Step 5: Solve for x
    x = 4,109,081,767.35/90,306.88
  6. Step 6: Final answer
    x = 45,501.32

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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.