Home / 57,025.15-78,690.69-31,527.36

Finding the Fourth Proportional to 57,025.15, 78,690.69 and 31,527.36

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Solution

The fourth proportional to 57,025.15, 78,690.69 and 31,527.36 is: 43,505.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,025.15 : 78,690.69 = 31,527.36 : x
  2. Step 2: Convert to fraction form
    57,025.15/78,690.69 = 31,527.36/x
  3. Step 3: Cross multiply
    57,025.15x = 78,690.69 × 31,527.36
  4. Step 4: Simplify right side
    57,025.15x = 2,480,909,712.28
  5. Step 5: Solve for x
    x = 2,480,909,712.28/57,025.15
  6. Step 6: Final answer
    x = 43,505.54

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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.