Home / 57,106.12-78,806.70-31,954

Finding the Fourth Proportional to 57,106.12, 78,806.70 and 31,954

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Solution

The fourth proportional to 57,106.12, 78,806.70 and 31,954 is: 44,096.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,106.12 : 78,806.70 = 31,954 : x
  2. Step 2: Convert to fraction form
    57,106.12/78,806.70 = 31,954/x
  3. Step 3: Cross multiply
    57,106.12x = 78,806.70 × 31,954
  4. Step 4: Simplify right side
    57,106.12x = 2,518,189,291.80
  5. Step 5: Solve for x
    x = 2,518,189,291.80/57,106.12
  6. Step 6: Final answer
    x = 44,096.66

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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.