Home / 52,764.16-72,821.28-30,408.32

Finding the Fourth Proportional to 52,764.16, 72,821.28 and 30,408.32

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Solution

The fourth proportional to 52,764.16, 72,821.28 and 30,408.32 is: 41,967.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,764.16 : 72,821.28 = 30,408.32 : x
  2. Step 2: Convert to fraction form
    52,764.16/72,821.28 = 30,408.32/x
  3. Step 3: Cross multiply
    52,764.16x = 72,821.28 × 30,408.32
  4. Step 4: Simplify right side
    52,764.16x = 2,214,372,785.05
  5. Step 5: Solve for x
    x = 2,214,372,785.05/52,764.16
  6. Step 6: Final answer
    x = 41,967.37

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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.