Home / 66,386.79-99,569.66-18,344.07

Finding the Fourth Proportional to 66,386.79, 99,569.66 and 18,344.07

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Solution

The fourth proportional to 66,386.79, 99,569.66 and 18,344.07 is: 27,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,386.79 : 99,569.66 = 18,344.07 : x
  2. Step 2: Convert to fraction form
    66,386.79/99,569.66 = 18,344.07/x
  3. Step 3: Cross multiply
    66,386.79x = 99,569.66 × 18,344.07
  4. Step 4: Simplify right side
    66,386.79x = 1,826,512,721.20
  5. Step 5: Solve for x
    x = 1,826,512,721.20/66,386.79
  6. Step 6: Final answer
    x = 27,513.20

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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.