Home / 72,583.36-108,832.66-28,158.20

Finding the Fourth Proportional to 72,583.36, 108,832.66 and 28,158.20

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Solution

The fourth proportional to 72,583.36, 108,832.66 and 28,158.20 is: 42,220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,583.36 : 108,832.66 = 28,158.20 : x
  2. Step 2: Convert to fraction form
    72,583.36/108,832.66 = 28,158.20/x
  3. Step 3: Cross multiply
    72,583.36x = 108,832.66 × 28,158.20
  4. Step 4: Simplify right side
    72,583.36x = 3,064,531,806.81
  5. Step 5: Solve for x
    x = 3,064,531,806.81/72,583.36
  6. Step 6: Final answer
    x = 42,220.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.