Home / 43,110.18-64,666.35-11,945.34

Finding the Fourth Proportional to 43,110.18, 64,666.35 and 11,945.34

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Solution

The fourth proportional to 43,110.18, 64,666.35 and 11,945.34 is: 17,918.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,110.18 : 64,666.35 = 11,945.34 : x
  2. Step 2: Convert to fraction form
    43,110.18/64,666.35 = 11,945.34/x
  3. Step 3: Cross multiply
    43,110.18x = 64,666.35 × 11,945.34
  4. Step 4: Simplify right side
    43,110.18x = 772,461,537.31
  5. Step 5: Solve for x
    x = 772,461,537.31/43,110.18
  6. Step 6: Final answer
    x = 17,918.31

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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.