Home / 57,155.66-78,873.96-31,661.95

Finding the Fourth Proportional to 57,155.66, 78,873.96 and 31,661.95

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Solution

The fourth proportional to 57,155.66, 78,873.96 and 31,661.95 is: 43,693.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,155.66 : 78,873.96 = 31,661.95 : x
  2. Step 2: Convert to fraction form
    57,155.66/78,873.96 = 31,661.95/x
  3. Step 3: Cross multiply
    57,155.66x = 78,873.96 × 31,661.95
  4. Step 4: Simplify right side
    57,155.66x = 2,497,303,476.41
  5. Step 5: Solve for x
    x = 2,497,303,476.41/57,155.66
  6. Step 6: Final answer
    x = 43,693.02

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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.