Home / 90,890.58-136,290.54-57,585.27

Finding the Fourth Proportional to 90,890.58, 136,290.54 and 57,585.27

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Solution

The fourth proportional to 90,890.58, 136,290.54 and 57,585.27 is: 86,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,890.58 : 136,290.54 = 57,585.27 : x
  2. Step 2: Convert to fraction form
    90,890.58/136,290.54 = 57,585.27/x
  3. Step 3: Cross multiply
    90,890.58x = 136,290.54 × 57,585.27
  4. Step 4: Simplify right side
    90,890.58x = 7,848,327,544.35
  5. Step 5: Solve for x
    x = 7,848,327,544.35/90,890.58
  6. Step 6: Final answer
    x = 86,349.19

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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.