Home / 86,659.60-119,548.85-54,378.13

Finding the Fourth Proportional to 86,659.60, 119,548.85 and 54,378.13

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Solution

The fourth proportional to 86,659.60, 119,548.85 and 54,378.13 is: 75,015.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,659.60 : 119,548.85 = 54,378.13 : x
  2. Step 2: Convert to fraction form
    86,659.60/119,548.85 = 54,378.13/x
  3. Step 3: Cross multiply
    86,659.60x = 119,548.85 × 54,378.13
  4. Step 4: Simplify right side
    86,659.60x = 6,500,843,255.71
  5. Step 5: Solve for x
    x = 6,500,843,255.71/86,659.60
  6. Step 6: Final answer
    x = 75,015.85

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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.