Home / 52,415.86-78,622.82-12,972.98

Finding the Fourth Proportional to 52,415.86, 78,622.82 and 12,972.98

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Solution

The fourth proportional to 52,415.86, 78,622.82 and 12,972.98 is: 19,459.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,415.86 : 78,622.82 = 12,972.98 : x
  2. Step 2: Convert to fraction form
    52,415.86/78,622.82 = 12,972.98/x
  3. Step 3: Cross multiply
    52,415.86x = 78,622.82 × 12,972.98
  4. Step 4: Simplify right side
    52,415.86x = 1,019,972,271.40
  5. Step 5: Solve for x
    x = 1,019,972,271.40/52,415.86
  6. Step 6: Final answer
    x = 19,459.23

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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.