Home / 51,218.40-76,885.20-39,583.20

Finding the Fourth Proportional to 51,218.40, 76,885.20 and 39,583.20

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Solution

The fourth proportional to 51,218.40, 76,885.20 and 39,583.20 is: 59,419.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,218.40 : 76,885.20 = 39,583.20 : x
  2. Step 2: Convert to fraction form
    51,218.40/76,885.20 = 39,583.20/x
  3. Step 3: Cross multiply
    51,218.40x = 76,885.20 × 39,583.20
  4. Step 4: Simplify right side
    51,218.40x = 3,043,362,248.64
  5. Step 5: Solve for x
    x = 3,043,362,248.64/51,218.40
  6. Step 6: Final answer
    x = 59,419.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.