Home / 77,388.42-116,097.20-55,146.62

Finding the Fourth Proportional to 77,388.42, 116,097.20 and 55,146.62

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Solution

The fourth proportional to 77,388.42, 116,097.20 and 55,146.62 is: 82,730.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,388.42 : 116,097.20 = 55,146.62 : x
  2. Step 2: Convert to fraction form
    77,388.42/116,097.20 = 55,146.62/x
  3. Step 3: Cross multiply
    77,388.42x = 116,097.20 × 55,146.62
  4. Step 4: Simplify right side
    77,388.42x = 6,402,368,171.46
  5. Step 5: Solve for x
    x = 6,402,368,171.46/77,388.42
  6. Step 6: Final answer
    x = 82,730.31

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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.