Home / 69,905.16-104,840.16-19,985.52

Finding the Fourth Proportional to 69,905.16, 104,840.16 and 19,985.52

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Solution

The fourth proportional to 69,905.16, 104,840.16 and 19,985.52 is: 29,973.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,905.16 : 104,840.16 = 19,985.52 : x
  2. Step 2: Convert to fraction form
    69,905.16/104,840.16 = 19,985.52/x
  3. Step 3: Cross multiply
    69,905.16x = 104,840.16 × 19,985.52
  4. Step 4: Simplify right side
    69,905.16x = 2,095,285,114.48
  5. Step 5: Solve for x
    x = 2,095,285,114.48/69,905.16
  6. Step 6: Final answer
    x = 29,973.25

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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.