Home / 70,623.02-105,950.86-20,706.98

Finding the Fourth Proportional to 70,623.02, 105,950.86 and 20,706.98

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Solution

The fourth proportional to 70,623.02, 105,950.86 and 20,706.98 is: 31,065.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,623.02 : 105,950.86 = 20,706.98 : x
  2. Step 2: Convert to fraction form
    70,623.02/105,950.86 = 20,706.98/x
  3. Step 3: Cross multiply
    70,623.02x = 105,950.86 × 20,706.98
  4. Step 4: Simplify right side
    70,623.02x = 2,193,922,339.00
  5. Step 5: Solve for x
    x = 2,193,922,339.00/70,623.02
  6. Step 6: Final answer
    x = 31,065.26

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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.