Home / 76,539.45-105,675.98-68,448.00

Finding the Fourth Proportional to 76,539.45, 105,675.98 and 68,448.00

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Solution

The fourth proportional to 76,539.45, 105,675.98 and 68,448.00 is: 94,504.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,539.45 : 105,675.98 = 68,448.00 : x
  2. Step 2: Convert to fraction form
    76,539.45/105,675.98 = 68,448.00/x
  3. Step 3: Cross multiply
    76,539.45x = 105,675.98 × 68,448.00
  4. Step 4: Simplify right side
    76,539.45x = 7,233,309,533.08
  5. Step 5: Solve for x
    x = 7,233,309,533.08/76,539.45
  6. Step 6: Final answer
    x = 94,504.33

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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.