Home / 86,775.12-119,748.24-48,535.56

Finding the Fourth Proportional to 86,775.12, 119,748.24 and 48,535.56

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Solution

The fourth proportional to 86,775.12, 119,748.24 and 48,535.56 is: 66,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,775.12 : 119,748.24 = 48,535.56 : x
  2. Step 2: Convert to fraction form
    86,775.12/119,748.24 = 48,535.56/x
  3. Step 3: Cross multiply
    86,775.12x = 119,748.24 × 48,535.56
  4. Step 4: Simplify right side
    86,775.12x = 5,812,047,887.41
  5. Step 5: Solve for x
    x = 5,812,047,887.41/86,775.12
  6. Step 6: Final answer
    x = 66,978.28

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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.