Home / 72,662.24-100,271.46-40,396.76

Finding the Fourth Proportional to 72,662.24, 100,271.46 and 40,396.76

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Solution

The fourth proportional to 72,662.24, 100,271.46 and 40,396.76 is: 55,746.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,662.24 : 100,271.46 = 40,396.76 : x
  2. Step 2: Convert to fraction form
    72,662.24/100,271.46 = 40,396.76/x
  3. Step 3: Cross multiply
    72,662.24x = 100,271.46 × 40,396.76
  4. Step 4: Simplify right side
    72,662.24x = 4,050,642,104.47
  5. Step 5: Solve for x
    x = 4,050,642,104.47/72,662.24
  6. Step 6: Final answer
    x = 55,746.18

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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.