Home / 76,224.84-105,390.96-66,766.32

Finding the Fourth Proportional to 76,224.84, 105,390.96 and 66,766.32

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Solution

The fourth proportional to 76,224.84, 105,390.96 and 66,766.32 is: 92,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,224.84 : 105,390.96 = 66,766.32 : x
  2. Step 2: Convert to fraction form
    76,224.84/105,390.96 = 66,766.32/x
  3. Step 3: Cross multiply
    76,224.84x = 105,390.96 × 66,766.32
  4. Step 4: Simplify right side
    76,224.84x = 7,036,566,560.47
  5. Step 5: Solve for x
    x = 7,036,566,560.47/76,224.84
  6. Step 6: Final answer
    x = 92,313.30

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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.