Home / 51,990.06-78,014.25-20,827.74

Finding the Fourth Proportional to 51,990.06, 78,014.25 and 20,827.74

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Solution

The fourth proportional to 51,990.06, 78,014.25 and 20,827.74 is: 31,253.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,990.06 : 78,014.25 = 20,827.74 : x
  2. Step 2: Convert to fraction form
    51,990.06/78,014.25 = 20,827.74/x
  3. Step 3: Cross multiply
    51,990.06x = 78,014.25 × 20,827.74
  4. Step 4: Simplify right side
    51,990.06x = 1,624,860,515.30
  5. Step 5: Solve for x
    x = 1,624,860,515.30/51,990.06
  6. Step 6: Final answer
    x = 31,253.29

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1.5x scale

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.