Home / 74,011.36-102,138.26-42,175.12

Finding the Fourth Proportional to 74,011.36, 102,138.26 and 42,175.12

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Solution

The fourth proportional to 74,011.36, 102,138.26 and 42,175.12 is: 58,203.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,011.36 : 102,138.26 = 42,175.12 : x
  2. Step 2: Convert to fraction form
    74,011.36/102,138.26 = 42,175.12/x
  3. Step 3: Cross multiply
    74,011.36x = 102,138.26 × 42,175.12
  4. Step 4: Simplify right side
    74,011.36x = 4,307,693,372.09
  5. Step 5: Solve for x
    x = 4,307,693,372.09/74,011.36
  6. Step 6: Final answer
    x = 58,203.14

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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.