Home / 52,113.07-78,169.60-12,669.92

Finding the Fourth Proportional to 52,113.07, 78,169.60 and 12,669.92

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Solution

The fourth proportional to 52,113.07, 78,169.60 and 12,669.92 is: 19,004.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,113.07 : 78,169.60 = 12,669.92 : x
  2. Step 2: Convert to fraction form
    52,113.07/78,169.60 = 12,669.92/x
  3. Step 3: Cross multiply
    52,113.07x = 78,169.60 × 12,669.92
  4. Step 4: Simplify right side
    52,113.07x = 990,402,187.58
  5. Step 5: Solve for x
    x = 990,402,187.58/52,113.07
  6. Step 6: Final answer
    x = 19,004.87

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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.