Home / 72,714.04-100,344.76-40,883.07

Finding the Fourth Proportional to 72,714.04, 100,344.76 and 40,883.07

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Solution

The fourth proportional to 72,714.04, 100,344.76 and 40,883.07 is: 56,418.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,714.04 : 100,344.76 = 40,883.07 : x
  2. Step 2: Convert to fraction form
    72,714.04/100,344.76 = 40,883.07/x
  3. Step 3: Cross multiply
    72,714.04x = 100,344.76 × 40,883.07
  4. Step 4: Simplify right side
    72,714.04x = 4,102,401,847.21
  5. Step 5: Solve for x
    x = 4,102,401,847.21/72,714.04
  6. Step 6: Final answer
    x = 56,418.29

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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.