Home / 68,289.08-94,239.76-39,615.38

Finding the Fourth Proportional to 68,289.08, 94,239.76 and 39,615.38

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Solution

The fourth proportional to 68,289.08, 94,239.76 and 39,615.38 is: 54,669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,289.08 : 94,239.76 = 39,615.38 : x
  2. Step 2: Convert to fraction form
    68,289.08/94,239.76 = 39,615.38/x
  3. Step 3: Cross multiply
    68,289.08x = 94,239.76 × 39,615.38
  4. Step 4: Simplify right side
    68,289.08x = 3,733,343,903.51
  5. Step 5: Solve for x
    x = 3,733,343,903.51/68,289.08
  6. Step 6: Final answer
    x = 54,669.71

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1.5x scale

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.