Home / 58,118.52-87,187.41-20,670.70

Finding the Fourth Proportional to 58,118.52, 87,187.41 and 20,670.70

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Solution

The fourth proportional to 58,118.52, 87,187.41 and 20,670.70 is: 31,009.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,118.52 : 87,187.41 = 20,670.70 : x
  2. Step 2: Convert to fraction form
    58,118.52/87,187.41 = 20,670.70/x
  3. Step 3: Cross multiply
    58,118.52x = 87,187.41 × 20,670.70
  4. Step 4: Simplify right side
    58,118.52x = 1,802,224,795.89
  5. Step 5: Solve for x
    x = 1,802,224,795.89/58,118.52
  6. Step 6: Final answer
    x = 31,009.48

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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.