Home / 72,026.17-99,401.74-40,199.85

Finding the Fourth Proportional to 72,026.17, 99,401.74 and 40,199.85

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Solution

The fourth proportional to 72,026.17, 99,401.74 and 40,199.85 is: 55,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,026.17 : 99,401.74 = 40,199.85 : x
  2. Step 2: Convert to fraction form
    72,026.17/99,401.74 = 40,199.85/x
  3. Step 3: Cross multiply
    72,026.17x = 99,401.74 × 40,199.85
  4. Step 4: Simplify right side
    72,026.17x = 3,995,934,937.24
  5. Step 5: Solve for x
    x = 3,995,934,937.24/72,026.17
  6. Step 6: Final answer
    x = 55,478.93

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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.