Home / 57,140.44-78,854.14-31,647.64

Finding the Fourth Proportional to 57,140.44, 78,854.14 and 31,647.64

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Solution

The fourth proportional to 57,140.44, 78,854.14 and 31,647.64 is: 43,673.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,140.44 : 78,854.14 = 31,647.64 : x
  2. Step 2: Convert to fraction form
    57,140.44/78,854.14 = 31,647.64/x
  3. Step 3: Cross multiply
    57,140.44x = 78,854.14 × 31,647.64
  4. Step 4: Simplify right side
    57,140.44x = 2,495,547,435.23
  5. Step 5: Solve for x
    x = 2,495,547,435.23/57,140.44
  6. Step 6: Final answer
    x = 43,673.93

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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.