Home / 72,336.32-99,832.66-40,499.08

Finding the Fourth Proportional to 72,336.32, 99,832.66 and 40,499.08

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Solution

The fourth proportional to 72,336.32, 99,832.66 and 40,499.08 is: 55,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,336.32 : 99,832.66 = 40,499.08 : x
  2. Step 2: Convert to fraction form
    72,336.32/99,832.66 = 40,499.08/x
  3. Step 3: Cross multiply
    72,336.32x = 99,832.66 × 40,499.08
  4. Step 4: Simplify right side
    72,336.32x = 4,043,130,883.95
  5. Step 5: Solve for x
    x = 4,043,130,883.95/72,336.32
  6. Step 6: Final answer
    x = 55,893.51

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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.