Home / 77,646.79-107,178.96-53,804.85

Finding the Fourth Proportional to 77,646.79, 107,178.96 and 53,804.85

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Solution

The fourth proportional to 77,646.79, 107,178.96 and 53,804.85 is: 74,268.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,646.79 : 107,178.96 = 53,804.85 : x
  2. Step 2: Convert to fraction form
    77,646.79/107,178.96 = 53,804.85/x
  3. Step 3: Cross multiply
    77,646.79x = 107,178.96 × 53,804.85
  4. Step 4: Simplify right side
    77,646.79x = 5,766,747,865.96
  5. Step 5: Solve for x
    x = 5,766,747,865.96/77,646.79
  6. Step 6: Final answer
    x = 74,268.98

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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.