Home / 57,021.57-78,686.60-31,526.45

Finding the Fourth Proportional to 57,021.57, 78,686.60 and 31,526.45

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Solution

The fourth proportional to 57,021.57, 78,686.60 and 31,526.45 is: 43,504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.57 : 78,686.60 = 31,526.45 : x
  2. Step 2: Convert to fraction form
    57,021.57/78,686.60 = 31,526.45/x
  3. Step 3: Cross multiply
    57,021.57x = 78,686.60 × 31,526.45
  4. Step 4: Simplify right side
    57,021.57x = 2,480,708,767.14
  5. Step 5: Solve for x
    x = 2,480,708,767.14/57,021.57
  6. Step 6: Final answer
    x = 43,504.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.