Home / 77,279.58-115,771.59-52,276.68

Finding the Fourth Proportional to 77,279.58, 115,771.59 and 52,276.68

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Solution

The fourth proportional to 77,279.58, 115,771.59 and 52,276.68 is: 78,315.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,279.58 : 115,771.59 = 52,276.68 : x
  2. Step 2: Convert to fraction form
    77,279.58/115,771.59 = 52,276.68/x
  3. Step 3: Cross multiply
    77,279.58x = 115,771.59 × 52,276.68
  4. Step 4: Simplify right side
    77,279.58x = 6,052,154,363.52
  5. Step 5: Solve for x
    x = 6,052,154,363.52/77,279.58
  6. Step 6: Final answer
    x = 78,315.05

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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.