Home / 74,872.78-103,324.68-40,881.34

Finding the Fourth Proportional to 74,872.78, 103,324.68 and 40,881.34

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Solution

The fourth proportional to 74,872.78, 103,324.68 and 40,881.34 is: 56,416.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,872.78 : 103,324.68 = 40,881.34 : x
  2. Step 2: Convert to fraction form
    74,872.78/103,324.68 = 40,881.34/x
  3. Step 3: Cross multiply
    74,872.78x = 103,324.68 × 40,881.34
  4. Step 4: Simplify right side
    74,872.78x = 4,224,051,373.47
  5. Step 5: Solve for x
    x = 4,224,051,373.47/74,872.78
  6. Step 6: Final answer
    x = 56,416.38

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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.