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Finding the Third Proportional to 40,788 and 54,897.75

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Solution

The third proportional to 40,788 and 54,897.75 is: 73,888.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,788 : 54,897.75 = 54,897.75 : x
  2. Step 2: Convert to fraction form
    40,788/54,897.75 = 54,897.75/x
  3. Step 3: Cross multiply
    40,788x = 54,897.75 × 54,897.75
  4. Step 4: Simplify right side
    40,788x = 3,013,762,955.06
  5. Step 5: Solve for x
    x = 3,013,762,955.06/40,788
  6. Step 6: Final answer
    x = 73,888.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.