Home / 72,679.28-100,268.91-53,604.83

Finding the Fourth Proportional to 72,679.28, 100,268.91 and 53,604.83

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Solution

The fourth proportional to 72,679.28, 100,268.91 and 53,604.83 is: 73,953.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,679.28 : 100,268.91 = 53,604.83 : x
  2. Step 2: Convert to fraction form
    72,679.28/100,268.91 = 53,604.83/x
  3. Step 3: Cross multiply
    72,679.28x = 100,268.91 × 53,604.83
  4. Step 4: Simplify right side
    72,679.28x = 5,374,898,125.51
  5. Step 5: Solve for x
    x = 5,374,898,125.51/72,679.28
  6. Step 6: Final answer
    x = 73,953.66

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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.