Home / 86,320.35-119,128.07-52,330.28

Finding the Fourth Proportional to 86,320.35, 119,128.07 and 52,330.28

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Solution

The fourth proportional to 86,320.35, 119,128.07 and 52,330.28 is: 72,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,320.35 : 119,128.07 = 52,330.28 : x
  2. Step 2: Convert to fraction form
    86,320.35/119,128.07 = 52,330.28/x
  3. Step 3: Cross multiply
    86,320.35x = 119,128.07 × 52,330.28
  4. Step 4: Simplify right side
    86,320.35x = 6,234,004,794.14
  5. Step 5: Solve for x
    x = 6,234,004,794.14/86,320.35
  6. Step 6: Final answer
    x = 72,219.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.