Home / 79,268.60-109,309.02-55,386.56

Finding the Fourth Proportional to 79,268.60, 109,309.02 and 55,386.56

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Solution

The fourth proportional to 79,268.60, 109,309.02 and 55,386.56 is: 76,376.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,268.60 : 109,309.02 = 55,386.56 : x
  2. Step 2: Convert to fraction form
    79,268.60/109,309.02 = 55,386.56/x
  3. Step 3: Cross multiply
    79,268.60x = 109,309.02 × 55,386.56
  4. Step 4: Simplify right side
    79,268.60x = 6,054,250,594.77
  5. Step 5: Solve for x
    x = 6,054,250,594.77/79,268.60
  6. Step 6: Final answer
    x = 76,376.40

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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.