Home / 70,365.08-97,109.36-40,143.44

Finding the Fourth Proportional to 70,365.08, 97,109.36 and 40,143.44

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Solution

The fourth proportional to 70,365.08, 97,109.36 and 40,143.44 is: 55,401.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,365.08 : 97,109.36 = 40,143.44 : x
  2. Step 2: Convert to fraction form
    70,365.08/97,109.36 = 40,143.44/x
  3. Step 3: Cross multiply
    70,365.08x = 97,109.36 × 40,143.44
  4. Step 4: Simplify right side
    70,365.08x = 3,898,303,766.60
  5. Step 5: Solve for x
    x = 3,898,303,766.60/70,365.08
  6. Step 6: Final answer
    x = 55,401.11

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1.5x scale

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.