Home / 45,985.75-68,916.25-20,994.82

Finding the Fourth Proportional to 45,985.75, 68,916.25 and 20,994.82

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Solution

The fourth proportional to 45,985.75, 68,916.25 and 20,994.82 is: 31,463.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,985.75 : 68,916.25 = 20,994.82 : x
  2. Step 2: Convert to fraction form
    45,985.75/68,916.25 = 20,994.82/x
  3. Step 3: Cross multiply
    45,985.75x = 68,916.25 × 20,994.82
  4. Step 4: Simplify right side
    45,985.75x = 1,446,884,263.83
  5. Step 5: Solve for x
    x = 1,446,884,263.83/45,985.75
  6. Step 6: Final answer
    x = 31,463.75

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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.