Home / 74,670.02-111,987.35-21,360.36

Finding the Fourth Proportional to 74,670.02, 111,987.35 and 21,360.36

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Solution

The fourth proportional to 74,670.02, 111,987.35 and 21,360.36 is: 32,035.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,670.02 : 111,987.35 = 21,360.36 : x
  2. Step 2: Convert to fraction form
    74,670.02/111,987.35 = 21,360.36/x
  3. Step 3: Cross multiply
    74,670.02x = 111,987.35 × 21,360.36
  4. Step 4: Simplify right side
    74,670.02x = 2,392,090,004.64
  5. Step 5: Solve for x
    x = 2,392,090,004.64/74,670.02
  6. Step 6: Final answer
    x = 32,035.48

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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.