Home / 72,300.55-99,778.49-40,035.01

Finding the Fourth Proportional to 72,300.55, 99,778.49 and 40,035.01

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Solution

The fourth proportional to 72,300.55, 99,778.49 and 40,035.01 is: 55,250.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,300.55 : 99,778.49 = 40,035.01 : x
  2. Step 2: Convert to fraction form
    72,300.55/99,778.49 = 40,035.01/x
  3. Step 3: Cross multiply
    72,300.55x = 99,778.49 × 40,035.01
  4. Step 4: Simplify right side
    72,300.55x = 3,994,632,844.93
  5. Step 5: Solve for x
    x = 3,994,632,844.93/72,300.55
  6. Step 6: Final answer
    x = 55,250.38

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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.