Home / 81,781.04-112,858.96-45,968.96

Finding the Fourth Proportional to 81,781.04, 112,858.96 and 45,968.96

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Solution

The fourth proportional to 81,781.04, 112,858.96 and 45,968.96 is: 63,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,781.04 : 112,858.96 = 45,968.96 : x
  2. Step 2: Convert to fraction form
    81,781.04/112,858.96 = 45,968.96/x
  3. Step 3: Cross multiply
    81,781.04x = 112,858.96 × 45,968.96
  4. Step 4: Simplify right side
    81,781.04x = 5,188,009,017.88
  5. Step 5: Solve for x
    x = 5,188,009,017.88/81,781.04
  6. Step 6: Final answer
    x = 63,437.80

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1.5x scale

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.