Home / 75,655.10-113,519.10-53,420.60

Finding the Fourth Proportional to 75,655.10, 113,519.10 and 53,420.60

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Solution

The fourth proportional to 75,655.10, 113,519.10 and 53,420.60 is: 80,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,655.10 : 113,519.10 = 53,420.60 : x
  2. Step 2: Convert to fraction form
    75,655.10/113,519.10 = 53,420.60/x
  3. Step 3: Cross multiply
    75,655.10x = 113,519.10 × 53,420.60
  4. Step 4: Simplify right side
    75,655.10x = 6,064,258,433.46
  5. Step 5: Solve for x
    x = 6,064,258,433.46/75,655.10
  6. Step 6: Final answer
    x = 80,156.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.