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Finding the Fourth Proportional to 64,688, 97,032 and 17,940.88

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Solution

The fourth proportional to 64,688, 97,032 and 17,940.88 is: 26,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,688 : 97,032 = 17,940.88 : x
  2. Step 2: Convert to fraction form
    64,688/97,032 = 17,940.88/x
  3. Step 3: Cross multiply
    64,688x = 97,032 × 17,940.88
  4. Step 4: Simplify right side
    64,688x = 1,740,838,983
  5. Step 5: Solve for x
    x = 1,740,838,983/64,688
  6. Step 6: Final answer
    x = 26,911.31

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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.