Home / 75,420.42-104,115.56-43,583.10

Finding the Fourth Proportional to 75,420.42, 104,115.56 and 43,583.10

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Solution

The fourth proportional to 75,420.42, 104,115.56 and 43,583.10 is: 60,165.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,420.42 : 104,115.56 = 43,583.10 : x
  2. Step 2: Convert to fraction form
    75,420.42/104,115.56 = 43,583.10/x
  3. Step 3: Cross multiply
    75,420.42x = 104,115.56 × 43,583.10
  4. Step 4: Simplify right side
    75,420.42x = 4,537,678,645.12
  5. Step 5: Solve for x
    x = 4,537,678,645.12/75,420.42
  6. Step 6: Final answer
    x = 60,165.12

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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.