Home / 74,513.13-102,828.06-40,979.13

Finding the Fourth Proportional to 74,513.13, 102,828.06 and 40,979.13

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Solution

The fourth proportional to 74,513.13, 102,828.06 and 40,979.13 is: 56,551.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,513.13 : 102,828.06 = 40,979.13 : x
  2. Step 2: Convert to fraction form
    74,513.13/102,828.06 = 40,979.13/x
  3. Step 3: Cross multiply
    74,513.13x = 102,828.06 × 40,979.13
  4. Step 4: Simplify right side
    74,513.13x = 4,213,804,438.39
  5. Step 5: Solve for x
    x = 4,213,804,438.39/74,513.13
  6. Step 6: Final answer
    x = 56,551.17

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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.