Home / 57,018.30-78,679.80-33,146.16

Finding the Fourth Proportional to 57,018.30, 78,679.80 and 33,146.16

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Solution

The fourth proportional to 57,018.30, 78,679.80 and 33,146.16 is: 45,738.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,018.30 : 78,679.80 = 33,146.16 : x
  2. Step 2: Convert to fraction form
    57,018.30/78,679.80 = 33,146.16/x
  3. Step 3: Cross multiply
    57,018.30x = 78,679.80 × 33,146.16
  4. Step 4: Simplify right side
    57,018.30x = 2,607,933,239.57
  5. Step 5: Solve for x
    x = 2,607,933,239.57/57,018.30
  6. Step 6: Final answer
    x = 45,738.53

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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.