Home / 70,389.54-97,118.21-40,163.99

Finding the Fourth Proportional to 70,389.54, 97,118.21 and 40,163.99

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Solution

The fourth proportional to 70,389.54, 97,118.21 and 40,163.99 is: 55,415.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,389.54 : 97,118.21 = 40,163.99 : x
  2. Step 2: Convert to fraction form
    70,389.54/97,118.21 = 40,163.99/x
  3. Step 3: Cross multiply
    70,389.54x = 97,118.21 × 40,163.99
  4. Step 4: Simplify right side
    70,389.54x = 3,900,654,430.08
  5. Step 5: Solve for x
    x = 3,900,654,430.08/70,389.54
  6. Step 6: Final answer
    x = 55,415.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.