Home / 74,886.30-103,816.26-70,891.38

Finding the Fourth Proportional to 74,886.30, 103,816.26 and 70,891.38

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Solution

The fourth proportional to 74,886.30, 103,816.26 and 70,891.38 is: 98,278.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,886.30 : 103,816.26 = 70,891.38 : x
  2. Step 2: Convert to fraction form
    74,886.30/103,816.26 = 70,891.38/x
  3. Step 3: Cross multiply
    74,886.30x = 103,816.26 × 70,891.38
  4. Step 4: Simplify right side
    74,886.30x = 7,359,677,937.84
  5. Step 5: Solve for x
    x = 7,359,677,937.84/74,886.30
  6. Step 6: Final answer
    x = 98,278.03

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.