Home / 286,624.72-429,998.91-86,961.18

Finding the Fourth Proportional to 286,624.72, 429,998.91 and 86,961.18

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Solution

The fourth proportional to 286,624.72, 429,998.91 and 86,961.18 is: 130,460.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,624.72 : 429,998.91 = 86,961.18 : x
  2. Step 2: Convert to fraction form
    286,624.72/429,998.91 = 86,961.18/x
  3. Step 3: Cross multiply
    286,624.72x = 429,998.91 × 86,961.18
  4. Step 4: Simplify right side
    286,624.72x = 37,393,212,612.31
  5. Step 5: Solve for x
    x = 37,393,212,612.31/286,624.72
  6. Step 6: Final answer
    x = 130,460.53

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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.