Home / 77,835.20-116,751.60-52,813.04

Finding the Fourth Proportional to 77,835.20, 116,751.60 and 52,813.04

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Solution

The fourth proportional to 77,835.20, 116,751.60 and 52,813.04 is: 79,218.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,835.20 : 116,751.60 = 52,813.04 : x
  2. Step 2: Convert to fraction form
    77,835.20/116,751.60 = 52,813.04/x
  3. Step 3: Cross multiply
    77,835.20x = 116,751.60 × 52,813.04
  4. Step 4: Simplify right side
    77,835.20x = 6,166,006,920.86
  5. Step 5: Solve for x
    x = 6,166,006,920.86/77,835.20
  6. Step 6: Final answer
    x = 79,218.75

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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.