Home / 53,431.89-73,741.50-30,771.74

Finding the Fourth Proportional to 53,431.89, 73,741.50 and 30,771.74

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Solution

The fourth proportional to 53,431.89, 73,741.50 and 30,771.74 is: 42,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,431.89 : 73,741.50 = 30,771.74 : x
  2. Step 2: Convert to fraction form
    53,431.89/73,741.50 = 30,771.74/x
  3. Step 3: Cross multiply
    53,431.89x = 73,741.50 × 30,771.74
  4. Step 4: Simplify right side
    53,431.89x = 2,269,153,896.50
  5. Step 5: Solve for x
    x = 2,269,153,896.50/53,431.89
  6. Step 6: Final answer
    x = 42,468.16

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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.