Home / 86,936.40-130,404.60-53,548.20

Finding the Fourth Proportional to 86,936.40, 130,404.60 and 53,548.20

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Solution

The fourth proportional to 86,936.40, 130,404.60 and 53,548.20 is: 80,322.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,936.40 : 130,404.60 = 53,548.20 : x
  2. Step 2: Convert to fraction form
    86,936.40/130,404.60 = 53,548.20/x
  3. Step 3: Cross multiply
    86,936.40x = 130,404.60 × 53,548.20
  4. Step 4: Simplify right side
    86,936.40x = 6,982,931,601.72
  5. Step 5: Solve for x
    x = 6,982,931,601.72/86,936.40
  6. Step 6: Final answer
    x = 80,322.30

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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.