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Finding the Fourth Proportional to 64,359.84, 96,554.88 and 19,984.32

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Solution

The fourth proportional to 64,359.84, 96,554.88 and 19,984.32 is: 29,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,359.84 : 96,554.88 = 19,984.32 : x
  2. Step 2: Convert to fraction form
    64,359.84/96,554.88 = 19,984.32/x
  3. Step 3: Cross multiply
    64,359.84x = 96,554.88 × 19,984.32
  4. Step 4: Simplify right side
    64,359.84x = 1,929,583,619.48
  5. Step 5: Solve for x
    x = 1,929,583,619.48/64,359.84
  6. Step 6: Final answer
    x = 29,981.17

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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.