Home / 57,043.02-78,722.14-31,549.29

Finding the Fourth Proportional to 57,043.02, 78,722.14 and 31,549.29

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Solution

The fourth proportional to 57,043.02, 78,722.14 and 31,549.29 is: 43,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,043.02 : 78,722.14 = 31,549.29 : x
  2. Step 2: Convert to fraction form
    57,043.02/78,722.14 = 31,549.29/x
  3. Step 3: Cross multiply
    57,043.02x = 78,722.14 × 31,549.29
  4. Step 4: Simplify right side
    57,043.02x = 2,483,627,624.28
  5. Step 5: Solve for x
    x = 2,483,627,624.28/57,043.02
  6. Step 6: Final answer
    x = 43,539.55

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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.