Home / 53,800.84-74,241.87-31,138.18

Finding the Fourth Proportional to 53,800.84, 74,241.87 and 31,138.18

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Solution

The fourth proportional to 53,800.84, 74,241.87 and 31,138.18 is: 42,968.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,800.84 : 74,241.87 = 31,138.18 : x
  2. Step 2: Convert to fraction form
    53,800.84/74,241.87 = 31,138.18/x
  3. Step 3: Cross multiply
    53,800.84x = 74,241.87 × 31,138.18
  4. Step 4: Simplify right side
    53,800.84x = 2,311,756,711.60
  5. Step 5: Solve for x
    x = 2,311,756,711.60/53,800.84
  6. Step 6: Final answer
    x = 42,968.78

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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.