Home / 74,661.25-103,031.09-40,669.34

Finding the Fourth Proportional to 74,661.25, 103,031.09 and 40,669.34

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Solution

The fourth proportional to 74,661.25, 103,031.09 and 40,669.34 is: 56,122.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,661.25 : 103,031.09 = 40,669.34 : x
  2. Step 2: Convert to fraction form
    74,661.25/103,031.09 = 40,669.34/x
  3. Step 3: Cross multiply
    74,661.25x = 103,031.09 × 40,669.34
  4. Step 4: Simplify right side
    74,661.25x = 4,190,206,429.78
  5. Step 5: Solve for x
    x = 4,190,206,429.78/74,661.25
  6. Step 6: Final answer
    x = 56,122.91

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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.