Home / 86,037.96-118,775.55-53,790.50

Finding the Fourth Proportional to 86,037.96, 118,775.55 and 53,790.50

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Solution

The fourth proportional to 86,037.96, 118,775.55 and 53,790.50 is: 74,257.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,037.96 : 118,775.55 = 53,790.50 : x
  2. Step 2: Convert to fraction form
    86,037.96/118,775.55 = 53,790.50/x
  3. Step 3: Cross multiply
    86,037.96x = 118,775.55 × 53,790.50
  4. Step 4: Simplify right side
    86,037.96x = 6,388,995,628.40
  5. Step 5: Solve for x
    x = 6,388,995,628.40/86,037.96
  6. Step 6: Final answer
    x = 74,257.87

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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.