Home / 64,964.45-97,446.92-19,985.50

Finding the Fourth Proportional to 64,964.45, 97,446.92 and 19,985.50

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Solution

The fourth proportional to 64,964.45, 97,446.92 and 19,985.50 is: 29,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,964.45 : 97,446.92 = 19,985.50 : x
  2. Step 2: Convert to fraction form
    64,964.45/97,446.92 = 19,985.50/x
  3. Step 3: Cross multiply
    64,964.45x = 97,446.92 × 19,985.50
  4. Step 4: Simplify right side
    64,964.45x = 1,947,525,419.66
  5. Step 5: Solve for x
    x = 1,947,525,419.66/64,964.45
  6. Step 6: Final answer
    x = 29,978.33

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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.