Home / 57,118.08-85,522.56-40,409.28

Finding the Fourth Proportional to 57,118.08, 85,522.56 and 40,409.28

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Solution

The fourth proportional to 57,118.08, 85,522.56 and 40,409.28 is: 60,504.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,118.08 : 85,522.56 = 40,409.28 : x
  2. Step 2: Convert to fraction form
    57,118.08/85,522.56 = 40,409.28/x
  3. Step 3: Cross multiply
    57,118.08x = 85,522.56 × 40,409.28
  4. Step 4: Simplify right side
    57,118.08x = 3,455,905,073.36
  5. Step 5: Solve for x
    x = 3,455,905,073.36/57,118.08
  6. Step 6: Final answer
    x = 60,504.57

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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.