Home / 72,238.49-99,683.70-40,401.23

Finding the Fourth Proportional to 72,238.49, 99,683.70 and 40,401.23

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Solution

The fourth proportional to 72,238.49, 99,683.70 and 40,401.23 is: 55,750.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,238.49 : 99,683.70 = 40,401.23 : x
  2. Step 2: Convert to fraction form
    72,238.49/99,683.70 = 40,401.23/x
  3. Step 3: Cross multiply
    72,238.49x = 99,683.70 × 40,401.23
  4. Step 4: Simplify right side
    72,238.49x = 4,027,344,090.95
  5. Step 5: Solve for x
    x = 4,027,344,090.95/72,238.49
  6. Step 6: Final answer
    x = 55,750.67

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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.