Home / 57,009.98-78,673.24-31,517.01

Finding the Fourth Proportional to 57,009.98, 78,673.24 and 31,517.01

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Solution

The fourth proportional to 57,009.98, 78,673.24 and 31,517.01 is: 43,493.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,009.98 : 78,673.24 = 31,517.01 : x
  2. Step 2: Convert to fraction form
    57,009.98/78,673.24 = 31,517.01/x
  3. Step 3: Cross multiply
    57,009.98x = 78,673.24 × 31,517.01
  4. Step 4: Simplify right side
    57,009.98x = 2,479,545,291.81
  5. Step 5: Solve for x
    x = 2,479,545,291.81/57,009.98
  6. Step 6: Final answer
    x = 43,493.18

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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.