Home / 64,659.19-96,988.67-20,289.29

Finding the Fourth Proportional to 64,659.19, 96,988.67 and 20,289.29

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Solution

The fourth proportional to 64,659.19, 96,988.67 and 20,289.29 is: 30,433.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,659.19 : 96,988.67 = 20,289.29 : x
  2. Step 2: Convert to fraction form
    64,659.19/96,988.67 = 20,289.29/x
  3. Step 3: Cross multiply
    64,659.19x = 96,988.67 × 20,289.29
  4. Step 4: Simplify right side
    64,659.19x = 1,967,830,684.98
  5. Step 5: Solve for x
    x = 1,967,830,684.98/64,659.19
  6. Step 6: Final answer
    x = 30,433.89

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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.