Home / 86,936.40-130,404.60-55,832.40

Finding the Fourth Proportional to 86,936.40, 130,404.60 and 55,832.40

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Solution

The fourth proportional to 86,936.40, 130,404.60 and 55,832.40 is: 83,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,936.40 : 130,404.60 = 55,832.40 : x
  2. Step 2: Convert to fraction form
    86,936.40/130,404.60 = 55,832.40/x
  3. Step 3: Cross multiply
    86,936.40x = 130,404.60 × 55,832.40
  4. Step 4: Simplify right side
    86,936.40x = 7,280,801,789.04
  5. Step 5: Solve for x
    x = 7,280,801,789.04/86,936.40
  6. Step 6: Final answer
    x = 83,748.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.