Home / 65,979.47-91,127.33-43,419.17

Finding the Fourth Proportional to 65,979.47, 91,127.33 and 43,419.17

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Solution

The fourth proportional to 65,979.47, 91,127.33 and 43,419.17 is: 59,968.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,979.47 : 91,127.33 = 43,419.17 : x
  2. Step 2: Convert to fraction form
    65,979.47/91,127.33 = 43,419.17/x
  3. Step 3: Cross multiply
    65,979.47x = 91,127.33 × 43,419.17
  4. Step 4: Simplify right side
    65,979.47x = 3,956,673,032.92
  5. Step 5: Solve for x
    x = 3,956,673,032.92/65,979.47
  6. Step 6: Final answer
    x = 59,968.25

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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.