Home / 53,211.30-73,431.58-30,551.76

Finding the Fourth Proportional to 53,211.30, 73,431.58 and 30,551.76

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Solution

The fourth proportional to 53,211.30, 73,431.58 and 30,551.76 is: 42,161.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,211.30 : 73,431.58 = 30,551.76 : x
  2. Step 2: Convert to fraction form
    53,211.30/73,431.58 = 30,551.76/x
  3. Step 3: Cross multiply
    53,211.30x = 73,431.58 × 30,551.76
  4. Step 4: Simplify right side
    53,211.30x = 2,243,464,008.58
  5. Step 5: Solve for x
    x = 2,243,464,008.58/53,211.30
  6. Step 6: Final answer
    x = 42,161.42

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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.