Home / 53,938.91-74,438.25-30,065.78

Finding the Fourth Proportional to 53,938.91, 74,438.25 and 30,065.78

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Solution

The fourth proportional to 53,938.91, 74,438.25 and 30,065.78 is: 41,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,938.91 : 74,438.25 = 30,065.78 : x
  2. Step 2: Convert to fraction form
    53,938.91/74,438.25 = 30,065.78/x
  3. Step 3: Cross multiply
    53,938.91x = 74,438.25 × 30,065.78
  4. Step 4: Simplify right side
    53,938.91x = 2,238,044,048.09
  5. Step 5: Solve for x
    x = 2,238,044,048.09/53,938.91
  6. Step 6: Final answer
    x = 41,492.20

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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.