Home / 53,415.86-80,125.43-18,355.02

Finding the Fourth Proportional to 53,415.86, 80,125.43 and 18,355.02

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Solution

The fourth proportional to 53,415.86, 80,125.43 and 18,355.02 is: 27,533.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,415.86 : 80,125.43 = 18,355.02 : x
  2. Step 2: Convert to fraction form
    53,415.86/80,125.43 = 18,355.02/x
  3. Step 3: Cross multiply
    53,415.86x = 80,125.43 × 18,355.02
  4. Step 4: Simplify right side
    53,415.86x = 1,470,703,870.16
  5. Step 5: Solve for x
    x = 1,470,703,870.16/53,415.86
  6. Step 6: Final answer
    x = 27,533.09

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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.