Home / 72,353.04-99,844.80-40,086.32

Finding the Fourth Proportional to 72,353.04, 99,844.80 and 40,086.32

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Solution

The fourth proportional to 72,353.04, 99,844.80 and 40,086.32 is: 55,317.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,353.04 : 99,844.80 = 40,086.32 : x
  2. Step 2: Convert to fraction form
    72,353.04/99,844.80 = 40,086.32/x
  3. Step 3: Cross multiply
    72,353.04x = 99,844.80 × 40,086.32
  4. Step 4: Simplify right side
    72,353.04x = 4,002,410,603.14
  5. Step 5: Solve for x
    x = 4,002,410,603.14/72,353.04
  6. Step 6: Final answer
    x = 55,317.79

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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.