Home / 40,808-61,222.80-13,106.72

Finding the Fourth Proportional to 40,808, 61,222.80 and 13,106.72

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Solution

The fourth proportional to 40,808, 61,222.80 and 13,106.72 is: 19,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,808 : 61,222.80 = 13,106.72 : x
  2. Step 2: Convert to fraction form
    40,808/61,222.80 = 13,106.72/x
  3. Step 3: Cross multiply
    40,808x = 61,222.80 × 13,106.72
  4. Step 4: Simplify right side
    40,808x = 802,430,097.22
  5. Step 5: Solve for x
    x = 802,430,097.22/40,808
  6. Step 6: Final answer
    x = 19,663.55

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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.