Home / 57,043.53-78,722.84-31,549.79

Finding the Fourth Proportional to 57,043.53, 78,722.84 and 31,549.79

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Solution

The fourth proportional to 57,043.53, 78,722.84 and 31,549.79 is: 43,540.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,043.53 : 78,722.84 = 31,549.79 : x
  2. Step 2: Convert to fraction form
    57,043.53/78,722.84 = 31,549.79/x
  3. Step 3: Cross multiply
    57,043.53x = 78,722.84 × 31,549.79
  4. Step 4: Simplify right side
    57,043.53x = 2,483,688,518.84
  5. Step 5: Solve for x
    x = 2,483,688,518.84/57,043.53
  6. Step 6: Final answer
    x = 43,540.23

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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.