Home / 57,400.72-79,218.64-31,915.80

Finding the Fourth Proportional to 57,400.72, 79,218.64 and 31,915.80

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Solution

The fourth proportional to 57,400.72, 79,218.64 and 31,915.80 is: 44,046.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,400.72 : 79,218.64 = 31,915.80 : x
  2. Step 2: Convert to fraction form
    57,400.72/79,218.64 = 31,915.80/x
  3. Step 3: Cross multiply
    57,400.72x = 79,218.64 × 31,915.80
  4. Step 4: Simplify right side
    57,400.72x = 2,528,326,270.51
  5. Step 5: Solve for x
    x = 2,528,326,270.51/57,400.72
  6. Step 6: Final answer
    x = 44,046.94

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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.