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Finding the Fourth Proportional to 64,440.04, 96,655.74 and 17,689

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Solution

The fourth proportional to 64,440.04, 96,655.74 and 17,689 is: 26,532.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,440.04 : 96,655.74 = 17,689 : x
  2. Step 2: Convert to fraction form
    64,440.04/96,655.74 = 17,689/x
  3. Step 3: Cross multiply
    64,440.04x = 96,655.74 × 17,689
  4. Step 4: Simplify right side
    64,440.04x = 1,709,743,384.86
  5. Step 5: Solve for x
    x = 1,709,743,384.86/64,440.04
  6. Step 6: Final answer
    x = 26,532.31

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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.