Home / 77,705.62-116,307.78-40,214.11

Finding the Fourth Proportional to 77,705.62, 116,307.78 and 40,214.11

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Solution

The fourth proportional to 77,705.62, 116,307.78 and 40,214.11 is: 60,191.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,705.62 : 116,307.78 = 40,214.11 : x
  2. Step 2: Convert to fraction form
    77,705.62/116,307.78 = 40,214.11/x
  3. Step 3: Cross multiply
    77,705.62x = 116,307.78 × 40,214.11
  4. Step 4: Simplify right side
    77,705.62x = 4,677,213,858.78
  5. Step 5: Solve for x
    x = 4,677,213,858.78/77,705.62
  6. Step 6: Final answer
    x = 60,191.45

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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.