Home / 57,049.08-78,730.32-31,898.60

Finding the Fourth Proportional to 57,049.08, 78,730.32 and 31,898.60

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Solution

The fourth proportional to 57,049.08, 78,730.32 and 31,898.60 is: 44,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,049.08 : 78,730.32 = 31,898.60 : x
  2. Step 2: Convert to fraction form
    57,049.08/78,730.32 = 31,898.60/x
  3. Step 3: Cross multiply
    57,049.08x = 78,730.32 × 31,898.60
  4. Step 4: Simplify right side
    57,049.08x = 2,511,386,985.55
  5. Step 5: Solve for x
    x = 2,511,386,985.55/57,049.08
  6. Step 6: Final answer
    x = 44,021.52

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1.5x scale

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.