Home / 53,942.18-74,434.05-31,276.44

Finding the Fourth Proportional to 53,942.18, 74,434.05 and 31,276.44

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Solution

The fourth proportional to 53,942.18, 74,434.05 and 31,276.44 is: 43,157.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,942.18 : 74,434.05 = 31,276.44 : x
  2. Step 2: Convert to fraction form
    53,942.18/74,434.05 = 31,276.44/x
  3. Step 3: Cross multiply
    53,942.18x = 74,434.05 × 31,276.44
  4. Step 4: Simplify right side
    53,942.18x = 2,328,032,098.78
  5. Step 5: Solve for x
    x = 2,328,032,098.78/53,942.18
  6. Step 6: Final answer
    x = 43,157.92

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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.