Home / 51,669.09-77,302.20-45,293.36

Finding the Fourth Proportional to 51,669.09, 77,302.20 and 45,293.36

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Solution

The fourth proportional to 51,669.09, 77,302.20 and 45,293.36 is: 67,763.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,669.09 : 77,302.20 = 45,293.36 : x
  2. Step 2: Convert to fraction form
    51,669.09/77,302.20 = 45,293.36/x
  3. Step 3: Cross multiply
    51,669.09x = 77,302.20 × 45,293.36
  4. Step 4: Simplify right side
    51,669.09x = 3,501,275,986.88
  5. Step 5: Solve for x
    x = 3,501,275,986.88/51,669.09
  6. Step 6: Final answer
    x = 67,763.45

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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.