Home / 90,853.79-136,308.54-46,511.96

Finding the Fourth Proportional to 90,853.79, 136,308.54 and 46,511.96

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Solution

The fourth proportional to 90,853.79, 136,308.54 and 46,511.96 is: 69,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,853.79 : 136,308.54 = 46,511.96 : x
  2. Step 2: Convert to fraction form
    90,853.79/136,308.54 = 46,511.96/x
  3. Step 3: Cross multiply
    90,853.79x = 136,308.54 × 46,511.96
  4. Step 4: Simplify right side
    90,853.79x = 6,339,977,360.14
  5. Step 5: Solve for x
    x = 6,339,977,360.14/90,853.79
  6. Step 6: Final answer
    x = 69,782.20

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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.