Home / 90,647.19-135,956.75-46,306.71

Finding the Fourth Proportional to 90,647.19, 135,956.75 and 46,306.71

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Solution

The fourth proportional to 90,647.19, 135,956.75 and 46,306.71 is: 69,452.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,647.19 : 135,956.75 = 46,306.71 : x
  2. Step 2: Convert to fraction form
    90,647.19/135,956.75 = 46,306.71/x
  3. Step 3: Cross multiply
    90,647.19x = 135,956.75 × 46,306.71
  4. Step 4: Simplify right side
    90,647.19x = 6,295,709,563.26
  5. Step 5: Solve for x
    x = 6,295,709,563.26/90,647.19
  6. Step 6: Final answer
    x = 69,452.89

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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.