Home / 72,067.64-99,457.97-40,236.53

Finding the Fourth Proportional to 72,067.64, 99,457.97 and 40,236.53

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Solution

The fourth proportional to 72,067.64, 99,457.97 and 40,236.53 is: 55,528.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,067.64 : 99,457.97 = 40,236.53 : x
  2. Step 2: Convert to fraction form
    72,067.64/99,457.97 = 40,236.53/x
  3. Step 3: Cross multiply
    72,067.64x = 99,457.97 × 40,236.53
  4. Step 4: Simplify right side
    72,067.64x = 4,001,842,895.17
  5. Step 5: Solve for x
    x = 4,001,842,895.17/72,067.64
  6. Step 6: Final answer
    x = 55,528.99

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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.