Home / 72,368.28-99,867.06-40,536.92

Finding the Fourth Proportional to 72,368.28, 99,867.06 and 40,536.92

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Solution

The fourth proportional to 72,368.28, 99,867.06 and 40,536.92 is: 55,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,368.28 : 99,867.06 = 40,536.92 : x
  2. Step 2: Convert to fraction form
    72,368.28/99,867.06 = 40,536.92/x
  3. Step 3: Cross multiply
    72,368.28x = 99,867.06 × 40,536.92
  4. Step 4: Simplify right side
    72,368.28x = 4,048,303,021.86
  5. Step 5: Solve for x
    x = 4,048,303,021.86/72,368.28
  6. Step 6: Final answer
    x = 55,940.30

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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.