Home / 74,125.76-102,292.82-40,133.36

Finding the Fourth Proportional to 74,125.76, 102,292.82 and 40,133.36

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Solution

The fourth proportional to 74,125.76, 102,292.82 and 40,133.36 is: 55,383.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,125.76 : 102,292.82 = 40,133.36 : x
  2. Step 2: Convert to fraction form
    74,125.76/102,292.82 = 40,133.36/x
  3. Step 3: Cross multiply
    74,125.76x = 102,292.82 × 40,133.36
  4. Step 4: Simplify right side
    74,125.76x = 4,105,354,570.48
  5. Step 5: Solve for x
    x = 4,105,354,570.48/74,125.76
  6. Step 6: Final answer
    x = 55,383.64

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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.