Home / 65,972.08-91,028.64-53,374.96

Finding the Fourth Proportional to 65,972.08, 91,028.64 and 53,374.96

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Solution

The fourth proportional to 65,972.08, 91,028.64 and 53,374.96 is: 73,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,972.08 : 91,028.64 = 53,374.96 : x
  2. Step 2: Convert to fraction form
    65,972.08/91,028.64 = 53,374.96/x
  3. Step 3: Cross multiply
    65,972.08x = 91,028.64 × 53,374.96
  4. Step 4: Simplify right side
    65,972.08x = 4,858,650,018.85
  5. Step 5: Solve for x
    x = 4,858,650,018.85/65,972.08
  6. Step 6: Final answer
    x = 73,647.06

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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.