Home / 57,050.08-78,731.70-31,899.60

Finding the Fourth Proportional to 57,050.08, 78,731.70 and 31,899.60

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Solution

The fourth proportional to 57,050.08, 78,731.70 and 31,899.60 is: 44,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,050.08 : 78,731.70 = 31,899.60 : x
  2. Step 2: Convert to fraction form
    57,050.08/78,731.70 = 31,899.60/x
  3. Step 3: Cross multiply
    57,050.08x = 78,731.70 × 31,899.60
  4. Step 4: Simplify right side
    57,050.08x = 2,511,509,737.32
  5. Step 5: Solve for x
    x = 2,511,509,737.32/57,050.08
  6. Step 6: Final answer
    x = 44,022.90

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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.