Home / 53,938.35-74,434.68-31,290.48

Finding the Fourth Proportional to 53,938.35, 74,434.68 and 31,290.48

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Solution

The fourth proportional to 53,938.35, 74,434.68 and 31,290.48 is: 43,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,938.35 : 74,434.68 = 31,290.48 : x
  2. Step 2: Convert to fraction form
    53,938.35/74,434.68 = 31,290.48/x
  3. Step 3: Cross multiply
    53,938.35x = 74,434.68 × 31,290.48
  4. Step 4: Simplify right side
    53,938.35x = 2,329,096,865.85
  5. Step 5: Solve for x
    x = 2,329,096,865.85/53,938.35
  6. Step 6: Final answer
    x = 43,180.72

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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.