Home / 81,923.60-113,027.53-66,790.25

Finding the Fourth Proportional to 81,923.60, 113,027.53 and 66,790.25

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Solution

The fourth proportional to 81,923.60, 113,027.53 and 66,790.25 is: 92,148.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,923.60 : 113,027.53 = 66,790.25 : x
  2. Step 2: Convert to fraction form
    81,923.60/113,027.53 = 66,790.25/x
  3. Step 3: Cross multiply
    81,923.60x = 113,027.53 × 66,790.25
  4. Step 4: Simplify right side
    81,923.60x = 7,549,136,985.58
  5. Step 5: Solve for x
    x = 7,549,136,985.58/81,923.60
  6. Step 6: Final answer
    x = 92,148.50

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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.