Home / 57,012.57-78,676.79-31,862.07

Finding the Fourth Proportional to 57,012.57, 78,676.79 and 31,862.07

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Solution

The fourth proportional to 57,012.57, 78,676.79 and 31,862.07 is: 43,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,012.57 : 78,676.79 = 31,862.07 : x
  2. Step 2: Convert to fraction form
    57,012.57/78,676.79 = 31,862.07/x
  3. Step 3: Cross multiply
    57,012.57x = 78,676.79 × 31,862.07
  4. Step 4: Simplify right side
    57,012.57x = 2,506,805,231.04
  5. Step 5: Solve for x
    x = 2,506,805,231.04/57,012.57
  6. Step 6: Final answer
    x = 43,969.34

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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.