Home / 76,577.04-105,646.80-56,481.54

Finding the Fourth Proportional to 76,577.04, 105,646.80 and 56,481.54

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Solution

The fourth proportional to 76,577.04, 105,646.80 and 56,481.54 is: 77,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,577.04 : 105,646.80 = 56,481.54 : x
  2. Step 2: Convert to fraction form
    76,577.04/105,646.80 = 56,481.54/x
  3. Step 3: Cross multiply
    76,577.04x = 105,646.80 × 56,481.54
  4. Step 4: Simplify right side
    76,577.04x = 5,967,093,960.07
  5. Step 5: Solve for x
    x = 5,967,093,960.07/76,577.04
  6. Step 6: Final answer
    x = 77,922.76

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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.