Home / 74,070.56-102,111.12-52,812.96

Finding the Fourth Proportional to 74,070.56, 102,111.12 and 52,812.96

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Solution

The fourth proportional to 74,070.56, 102,111.12 and 52,812.96 is: 72,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,070.56 : 102,111.12 = 52,812.96 : x
  2. Step 2: Convert to fraction form
    74,070.56/102,111.12 = 52,812.96/x
  3. Step 3: Cross multiply
    74,070.56x = 102,111.12 × 52,812.96
  4. Step 4: Simplify right side
    74,070.56x = 5,392,790,496.12
  5. Step 5: Solve for x
    x = 5,392,790,496.12/74,070.56
  6. Step 6: Final answer
    x = 72,806.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.