Home / 64,347.28-88,722.03-55,379.36

Finding the Fourth Proportional to 64,347.28, 88,722.03 and 55,379.36

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Solution

The fourth proportional to 64,347.28, 88,722.03 and 55,379.36 is: 76,357.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,347.28 : 88,722.03 = 55,379.36 : x
  2. Step 2: Convert to fraction form
    64,347.28/88,722.03 = 55,379.36/x
  3. Step 3: Cross multiply
    64,347.28x = 88,722.03 × 55,379.36
  4. Step 4: Simplify right side
    64,347.28x = 4,913,369,668.78
  5. Step 5: Solve for x
    x = 4,913,369,668.78/64,347.28
  6. Step 6: Final answer
    x = 76,357.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.