Home / 52,814.19-78,811.80-47,205.75

Finding the Fourth Proportional to 52,814.19, 78,811.80 and 47,205.75

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Solution

The fourth proportional to 52,814.19, 78,811.80 and 47,205.75 is: 70,442.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,814.19 : 78,811.80 = 47,205.75 : x
  2. Step 2: Convert to fraction form
    52,814.19/78,811.80 = 47,205.75/x
  3. Step 3: Cross multiply
    52,814.19x = 78,811.80 × 47,205.75
  4. Step 4: Simplify right side
    52,814.19x = 3,720,370,127.85
  5. Step 5: Solve for x
    x = 3,720,370,127.85/52,814.19
  6. Step 6: Final answer
    x = 70,442.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.