Home / 57,120.07-78,814.75-36,974.16

Finding the Fourth Proportional to 57,120.07, 78,814.75 and 36,974.16

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Solution

The fourth proportional to 57,120.07, 78,814.75 and 36,974.16 is: 51,017.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120.07 : 78,814.75 = 36,974.16 : x
  2. Step 2: Convert to fraction form
    57,120.07/78,814.75 = 36,974.16/x
  3. Step 3: Cross multiply
    57,120.07x = 78,814.75 × 36,974.16
  4. Step 4: Simplify right side
    57,120.07x = 2,914,109,176.86
  5. Step 5: Solve for x
    x = 2,914,109,176.86/57,120.07
  6. Step 6: Final answer
    x = 51,017.26

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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.