Home / 53,905.84-74,390.12-31,249.20

Finding the Fourth Proportional to 53,905.84, 74,390.12 and 31,249.20

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Solution

The fourth proportional to 53,905.84, 74,390.12 and 31,249.20 is: 43,123.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,905.84 : 74,390.12 = 31,249.20 : x
  2. Step 2: Convert to fraction form
    53,905.84/74,390.12 = 31,249.20/x
  3. Step 3: Cross multiply
    53,905.84x = 74,390.12 × 31,249.20
  4. Step 4: Simplify right side
    53,905.84x = 2,324,631,737.90
  5. Step 5: Solve for x
    x = 2,324,631,737.90/53,905.84
  6. Step 6: Final answer
    x = 43,123.93

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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.