Home / 77,158.48-115,550.80-53,399.44

Finding the Fourth Proportional to 77,158.48, 115,550.80 and 53,399.44

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Solution

The fourth proportional to 77,158.48, 115,550.80 and 53,399.44 is: 79,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,158.48 : 115,550.80 = 53,399.44 : x
  2. Step 2: Convert to fraction form
    77,158.48/115,550.80 = 53,399.44/x
  3. Step 3: Cross multiply
    77,158.48x = 115,550.80 × 53,399.44
  4. Step 4: Simplify right side
    77,158.48x = 6,170,348,011.55
  5. Step 5: Solve for x
    x = 6,170,348,011.55/77,158.48
  6. Step 6: Final answer
    x = 79,969.80

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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.