Home / 72,026.42-99,402.08-40,200.10

Finding the Fourth Proportional to 72,026.42, 99,402.08 and 40,200.10

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Solution

The fourth proportional to 72,026.42, 99,402.08 and 40,200.10 is: 55,479.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,026.42 : 99,402.08 = 40,200.10 : x
  2. Step 2: Convert to fraction form
    72,026.42/99,402.08 = 40,200.10/x
  3. Step 3: Cross multiply
    72,026.42x = 99,402.08 × 40,200.10
  4. Step 4: Simplify right side
    72,026.42x = 3,995,973,556.21
  5. Step 5: Solve for x
    x = 3,995,973,556.21/72,026.42
  6. Step 6: Final answer
    x = 55,479.27

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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.