Home / 70,378.33-97,129.07-40,168.21

Finding the Fourth Proportional to 70,378.33, 97,129.07 and 40,168.21

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Solution

The fourth proportional to 70,378.33, 97,129.07 and 40,168.21 is: 55,436.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,378.33 : 97,129.07 = 40,168.21 : x
  2. Step 2: Convert to fraction form
    70,378.33/97,129.07 = 40,168.21/x
  3. Step 3: Cross multiply
    70,378.33x = 97,129.07 × 40,168.21
  4. Step 4: Simplify right side
    70,378.33x = 3,901,500,880.86
  5. Step 5: Solve for x
    x = 3,901,500,880.86/70,378.33
  6. Step 6: Final answer
    x = 55,436.11

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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.