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Finding the Fourth Proportional to 75,046.40, 103,652.16 and 59,991.20

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Solution

The fourth proportional to 75,046.40, 103,652.16 and 59,991.20 is: 82,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,046.40 : 103,652.16 = 59,991.20 : x
  2. Step 2: Convert to fraction form
    75,046.40/103,652.16 = 59,991.20/x
  3. Step 3: Cross multiply
    75,046.40x = 103,652.16 × 59,991.20
  4. Step 4: Simplify right side
    75,046.40x = 6,218,217,460.99
  5. Step 5: Solve for x
    x = 6,218,217,460.99/75,046.40
  6. Step 6: Final answer
    x = 82,858.30

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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.