Home / 86,843.28-130,280.52-30,715.92

Finding the Fourth Proportional to 86,843.28, 130,280.52 and 30,715.92

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Solution

The fourth proportional to 86,843.28, 130,280.52 and 30,715.92 is: 46,079.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,843.28 : 130,280.52 = 30,715.92 : x
  2. Step 2: Convert to fraction form
    86,843.28/130,280.52 = 30,715.92/x
  3. Step 3: Cross multiply
    86,843.28x = 130,280.52 × 30,715.92
  4. Step 4: Simplify right side
    86,843.28x = 4,001,686,029.88
  5. Step 5: Solve for x
    x = 4,001,686,029.88/86,843.28
  6. Step 6: Final answer
    x = 46,079.40

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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.