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Finding the Third Proportional to 55,779.75 and 84,975.75

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Solution

The third proportional to 55,779.75 and 84,975.75 is: 129,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,779.75 : 84,975.75 = 84,975.75 : x
  2. Step 2: Convert to fraction form
    55,779.75/84,975.75 = 84,975.75/x
  3. Step 3: Cross multiply
    55,779.75x = 84,975.75 × 84,975.75
  4. Step 4: Simplify right side
    55,779.75x = 7,220,878,088.06
  5. Step 5: Solve for x
    x = 7,220,878,088.06/55,779.75
  6. Step 6: Final answer
    x = 129,453.40

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.