Home / 81,374.02-112,219.77-54,102.34

Finding the Fourth Proportional to 81,374.02, 112,219.77 and 54,102.34

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Solution

The fourth proportional to 81,374.02, 112,219.77 and 54,102.34 is: 74,610.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,374.02 : 112,219.77 = 54,102.34 : x
  2. Step 2: Convert to fraction form
    81,374.02/112,219.77 = 54,102.34/x
  3. Step 3: Cross multiply
    81,374.02x = 112,219.77 × 54,102.34
  4. Step 4: Simplify right side
    81,374.02x = 6,071,352,151.26
  5. Step 5: Solve for x
    x = 6,071,352,151.26/81,374.02
  6. Step 6: Final answer
    x = 74,610.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.