Home / 72,913.70-109,151.85-43,316.30

Finding the Fourth Proportional to 72,913.70, 109,151.85 and 43,316.30

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Solution

The fourth proportional to 72,913.70, 109,151.85 and 43,316.30 is: 64,844.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,913.70 : 109,151.85 = 43,316.30 : x
  2. Step 2: Convert to fraction form
    72,913.70/109,151.85 = 43,316.30/x
  3. Step 3: Cross multiply
    72,913.70x = 109,151.85 × 43,316.30
  4. Step 4: Simplify right side
    72,913.70x = 4,728,054,280.16
  5. Step 5: Solve for x
    x = 4,728,054,280.16/72,913.70
  6. Step 6: Final answer
    x = 64,844.53

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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.