Home / 57,153.16-79,346.47-55,442.44

Finding the Fourth Proportional to 57,153.16, 79,346.47 and 55,442.44

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Solution

The fourth proportional to 57,153.16, 79,346.47 and 55,442.44 is: 76,971.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,153.16 : 79,346.47 = 55,442.44 : x
  2. Step 2: Convert to fraction form
    57,153.16/79,346.47 = 55,442.44/x
  3. Step 3: Cross multiply
    57,153.16x = 79,346.47 × 55,442.44
  4. Step 4: Simplify right side
    57,153.16x = 4,399,161,902.19
  5. Step 5: Solve for x
    x = 4,399,161,902.19/57,153.16
  6. Step 6: Final answer
    x = 76,971.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.