Home / 86,785.35-130,029.42-47,370.12

Finding the Fourth Proportional to 86,785.35, 130,029.42 and 47,370.12

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Solution

The fourth proportional to 86,785.35, 130,029.42 and 47,370.12 is: 70,974.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,785.35 : 130,029.42 = 47,370.12 : x
  2. Step 2: Convert to fraction form
    86,785.35/130,029.42 = 47,370.12/x
  3. Step 3: Cross multiply
    86,785.35x = 130,029.42 × 47,370.12
  4. Step 4: Simplify right side
    86,785.35x = 6,159,509,228.93
  5. Step 5: Solve for x
    x = 6,159,509,228.93/86,785.35
  6. Step 6: Final answer
    x = 70,974.07

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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.