Home / 53,790.89-74,230.10-31,126.73

Finding the Fourth Proportional to 53,790.89, 74,230.10 and 31,126.73

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Solution

The fourth proportional to 53,790.89, 74,230.10 and 31,126.73 is: 42,954.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,790.89 : 74,230.10 = 31,126.73 : x
  2. Step 2: Convert to fraction form
    53,790.89/74,230.10 = 31,126.73/x
  3. Step 3: Cross multiply
    53,790.89x = 74,230.10 × 31,126.73
  4. Step 4: Simplify right side
    53,790.89x = 2,310,539,753.79
  5. Step 5: Solve for x
    x = 2,310,539,753.79/53,790.89
  6. Step 6: Final answer
    x = 42,954.11

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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.