Home / 286,060.05-429,093.32-86,382.09

Finding the Fourth Proportional to 286,060.05, 429,093.32 and 86,382.09

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Solution

The fourth proportional to 286,060.05, 429,093.32 and 86,382.09 is: 129,574.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,060.05 : 429,093.32 = 86,382.09 : x
  2. Step 2: Convert to fraction form
    286,060.05/429,093.32 = 86,382.09/x
  3. Step 3: Cross multiply
    286,060.05x = 429,093.32 × 86,382.09
  4. Step 4: Simplify right side
    286,060.05x = 37,065,977,354.73
  5. Step 5: Solve for x
    x = 37,065,977,354.73/286,060.05
  6. Step 6: Final answer
    x = 129,574.11

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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.