Home / 75,090.30-103,636.24-42,824.98

Finding the Fourth Proportional to 75,090.30, 103,636.24 and 42,824.98

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Solution

The fourth proportional to 75,090.30, 103,636.24 and 42,824.98 is: 59,105.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,090.30 : 103,636.24 = 42,824.98 : x
  2. Step 2: Convert to fraction form
    75,090.30/103,636.24 = 42,824.98/x
  3. Step 3: Cross multiply
    75,090.30x = 103,636.24 × 42,824.98
  4. Step 4: Simplify right side
    75,090.30x = 4,438,219,905.28
  5. Step 5: Solve for x
    x = 4,438,219,905.28/75,090.30
  6. Step 6: Final answer
    x = 59,105.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.