Home / 45,918.63-68,720.67-31,894.47

Finding the Fourth Proportional to 45,918.63, 68,720.67 and 31,894.47

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Solution

The fourth proportional to 45,918.63, 68,720.67 and 31,894.47 is: 47,732.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,918.63 : 68,720.67 = 31,894.47 : x
  2. Step 2: Convert to fraction form
    45,918.63/68,720.67 = 31,894.47/x
  3. Step 3: Cross multiply
    45,918.63x = 68,720.67 × 31,894.47
  4. Step 4: Simplify right side
    45,918.63x = 2,191,809,347.69
  5. Step 5: Solve for x
    x = 2,191,809,347.69/45,918.63
  6. Step 6: Final answer
    x = 47,732.46

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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.