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Finding the Fourth Proportional to 47,579, 65,659.02 and 28,716.12

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Solution

The fourth proportional to 47,579, 65,659.02 and 28,716.12 is: 39,628.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,579 : 65,659.02 = 28,716.12 : x
  2. Step 2: Convert to fraction form
    47,579/65,659.02 = 28,716.12/x
  3. Step 3: Cross multiply
    47,579x = 65,659.02 × 28,716.12
  4. Step 4: Simplify right side
    47,579x = 1,885,472,297.40
  5. Step 5: Solve for x
    x = 1,885,472,297.40/47,579
  6. Step 6: Final answer
    x = 39,628.25

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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.