Home / 70,647.02-105,970.25-18,056.42

Finding the Fourth Proportional to 70,647.02, 105,970.25 and 18,056.42

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Solution

The fourth proportional to 70,647.02, 105,970.25 and 18,056.42 is: 27,084.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,647.02 : 105,970.25 = 18,056.42 : x
  2. Step 2: Convert to fraction form
    70,647.02/105,970.25 = 18,056.42/x
  3. Step 3: Cross multiply
    70,647.02x = 105,970.25 × 18,056.42
  4. Step 4: Simplify right side
    70,647.02x = 1,913,442,811.65
  5. Step 5: Solve for x
    x = 1,913,442,811.65/70,647.02
  6. Step 6: Final answer
    x = 27,084.55

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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.