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Finding the Third Proportional to 64,920 and 97,807.50

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Solution

The third proportional to 64,920 and 97,807.50 is: 147,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,920 : 97,807.50 = 97,807.50 : x
  2. Step 2: Convert to fraction form
    64,920/97,807.50 = 97,807.50/x
  3. Step 3: Cross multiply
    64,920x = 97,807.50 × 97,807.50
  4. Step 4: Simplify right side
    64,920x = 9,566,307,056.25
  5. Step 5: Solve for x
    x = 9,566,307,056.25/64,920
  6. Step 6: Final answer
    x = 147,355.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.