Home / 89,214.61-133,779.53-51,786.15

Finding the Fourth Proportional to 89,214.61, 133,779.53 and 51,786.15

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Solution

The fourth proportional to 89,214.61, 133,779.53 and 51,786.15 is: 77,654.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,214.61 : 133,779.53 = 51,786.15 : x
  2. Step 2: Convert to fraction form
    89,214.61/133,779.53 = 51,786.15/x
  3. Step 3: Cross multiply
    89,214.61x = 133,779.53 × 51,786.15
  4. Step 4: Simplify right side
    89,214.61x = 6,927,926,936.97
  5. Step 5: Solve for x
    x = 6,927,926,936.97/89,214.61
  6. Step 6: Final answer
    x = 77,654.63

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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.