Home / 78,148.71-117,066.06-35,969.85

Finding the Fourth Proportional to 78,148.71, 117,066.06 and 35,969.85

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Solution

The fourth proportional to 78,148.71, 117,066.06 and 35,969.85 is: 53,882.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,148.71 : 117,066.06 = 35,969.85 : x
  2. Step 2: Convert to fraction form
    78,148.71/117,066.06 = 35,969.85/x
  3. Step 3: Cross multiply
    78,148.71x = 117,066.06 × 35,969.85
  4. Step 4: Simplify right side
    78,148.71x = 4,210,848,618.29
  5. Step 5: Solve for x
    x = 4,210,848,618.29/78,148.71
  6. Step 6: Final answer
    x = 53,882.51

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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.