Home / 77,779.20-116,539.20-73,113.60

Finding the Fourth Proportional to 77,779.20, 116,539.20 and 73,113.60

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Solution

The fourth proportional to 77,779.20, 116,539.20 and 73,113.60 is: 109,548.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,779.20 : 116,539.20 = 73,113.60 : x
  2. Step 2: Convert to fraction form
    77,779.20/116,539.20 = 73,113.60/x
  3. Step 3: Cross multiply
    77,779.20x = 116,539.20 × 73,113.60
  4. Step 4: Simplify right side
    77,779.20x = 8,520,600,453.12
  5. Step 5: Solve for x
    x = 8,520,600,453.12/77,779.20
  6. Step 6: Final answer
    x = 109,548.57

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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.