Home / 57,056.09-78,735.93-31,561.79

Finding the Fourth Proportional to 57,056.09, 78,735.93 and 31,561.79

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Solution

The fourth proportional to 57,056.09, 78,735.93 and 31,561.79 is: 43,554.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,056.09 : 78,735.93 = 31,561.79 : x
  2. Step 2: Convert to fraction form
    57,056.09/78,735.93 = 31,561.79/x
  3. Step 3: Cross multiply
    57,056.09x = 78,735.93 × 31,561.79
  4. Step 4: Simplify right side
    57,056.09x = 2,485,046,888.11
  5. Step 5: Solve for x
    x = 2,485,046,888.11/57,056.09
  6. Step 6: Final answer
    x = 43,554.45

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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.