Home / 52,223.07-78,332.16-12,778.09

Finding the Fourth Proportional to 52,223.07, 78,332.16 and 12,778.09

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Solution

The fourth proportional to 52,223.07, 78,332.16 and 12,778.09 is: 19,166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,223.07 : 78,332.16 = 12,778.09 : x
  2. Step 2: Convert to fraction form
    52,223.07/78,332.16 = 12,778.09/x
  3. Step 3: Cross multiply
    52,223.07x = 78,332.16 × 12,778.09
  4. Step 4: Simplify right side
    52,223.07x = 1,000,935,390.37
  5. Step 5: Solve for x
    x = 1,000,935,390.37/52,223.07
  6. Step 6: Final answer
    x = 19,166.54

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1.5x scale

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.