Home / 71,830.64-99,125.16-40,002.32

Finding the Fourth Proportional to 71,830.64, 99,125.16 and 40,002.32

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Solution

The fourth proportional to 71,830.64, 99,125.16 and 40,002.32 is: 55,202.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,830.64 : 99,125.16 = 40,002.32 : x
  2. Step 2: Convert to fraction form
    71,830.64/99,125.16 = 40,002.32/x
  3. Step 3: Cross multiply
    71,830.64x = 99,125.16 × 40,002.32
  4. Step 4: Simplify right side
    71,830.64x = 3,965,236,370.37
  5. Step 5: Solve for x
    x = 3,965,236,370.37/71,830.64
  6. Step 6: Final answer
    x = 55,202.58

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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.