Home / 58,084.69-87,138.38-18,638.77

Finding the Fourth Proportional to 58,084.69, 87,138.38 and 18,638.77

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Solution

The fourth proportional to 58,084.69, 87,138.38 and 18,638.77 is: 27,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,084.69 : 87,138.38 = 18,638.77 : x
  2. Step 2: Convert to fraction form
    58,084.69/87,138.38 = 18,638.77/x
  3. Step 3: Cross multiply
    58,084.69x = 87,138.38 × 18,638.77
  4. Step 4: Simplify right side
    58,084.69x = 1,624,152,222.99
  5. Step 5: Solve for x
    x = 1,624,152,222.99/58,084.69
  6. Step 6: Final answer
    x = 27,961.80

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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.