Home / 42,940.16-64,365-23,213.36

Finding the Fourth Proportional to 42,940.16, 64,365 and 23,213.36

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Solution

The fourth proportional to 42,940.16, 64,365 and 23,213.36 is: 34,795.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,940.16 : 64,365 = 23,213.36 : x
  2. Step 2: Convert to fraction form
    42,940.16/64,365 = 23,213.36/x
  3. Step 3: Cross multiply
    42,940.16x = 64,365 × 23,213.36
  4. Step 4: Simplify right side
    42,940.16x = 1,494,127,916.40
  5. Step 5: Solve for x
    x = 1,494,127,916.40/42,940.16
  6. Step 6: Final answer
    x = 34,795.58

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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.