Home / 70,121.08-105,118.98-30,646.94

Finding the Fourth Proportional to 70,121.08, 105,118.98 and 30,646.94

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Solution

The fourth proportional to 70,121.08, 105,118.98 and 30,646.94 is: 45,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,121.08 : 105,118.98 = 30,646.94 : x
  2. Step 2: Convert to fraction form
    70,121.08/105,118.98 = 30,646.94/x
  3. Step 3: Cross multiply
    70,121.08x = 105,118.98 × 30,646.94
  4. Step 4: Simplify right side
    70,121.08x = 3,221,575,072.92
  5. Step 5: Solve for x
    x = 3,221,575,072.92/70,121.08
  6. Step 6: Final answer
    x = 45,943.03

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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.