Home / 86,533.20-129,879.96-53,318.16

Finding the Fourth Proportional to 86,533.20, 129,879.96 and 53,318.16

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Solution

The fourth proportional to 86,533.20, 129,879.96 and 53,318.16 is: 80,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,533.20 : 129,879.96 = 53,318.16 : x
  2. Step 2: Convert to fraction form
    86,533.20/129,879.96 = 53,318.16/x
  3. Step 3: Cross multiply
    86,533.20x = 129,879.96 × 53,318.16
  4. Step 4: Simplify right side
    86,533.20x = 6,924,960,488.07
  5. Step 5: Solve for x
    x = 6,924,960,488.07/86,533.20
  6. Step 6: Final answer
    x = 80,026.63

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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.