Home / 86,559.37-129,853.41-30,384.91

Finding the Fourth Proportional to 86,559.37, 129,853.41 and 30,384.91

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Solution

The fourth proportional to 86,559.37, 129,853.41 and 30,384.91 is: 45,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,559.37 : 129,853.41 = 30,384.91 : x
  2. Step 2: Convert to fraction form
    86,559.37/129,853.41 = 30,384.91/x
  3. Step 3: Cross multiply
    86,559.37x = 129,853.41 × 30,384.91
  4. Step 4: Simplify right side
    86,559.37x = 3,945,584,176.04
  5. Step 5: Solve for x
    x = 3,945,584,176.04/86,559.37
  6. Step 6: Final answer
    x = 45,582.40

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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.