Home / 57,036.96-78,698.64-31,885.60

Finding the Fourth Proportional to 57,036.96, 78,698.64 and 31,885.60

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Solution

The fourth proportional to 57,036.96, 78,698.64 and 31,885.60 is: 43,995.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,036.96 : 78,698.64 = 31,885.60 : x
  2. Step 2: Convert to fraction form
    57,036.96/78,698.64 = 31,885.60/x
  3. Step 3: Cross multiply
    57,036.96x = 78,698.64 × 31,885.60
  4. Step 4: Simplify right side
    57,036.96x = 2,509,353,355.58
  5. Step 5: Solve for x
    x = 2,509,353,355.58/57,036.96
  6. Step 6: Final answer
    x = 43,995.22

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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.