Home / 77,639.64-116,430.81-27,706.38

Finding the Fourth Proportional to 77,639.64, 116,430.81 and 27,706.38

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Solution

The fourth proportional to 77,639.64, 116,430.81 and 27,706.38 is: 41,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,639.64 : 116,430.81 = 27,706.38 : x
  2. Step 2: Convert to fraction form
    77,639.64/116,430.81 = 27,706.38/x
  3. Step 3: Cross multiply
    77,639.64x = 116,430.81 × 27,706.38
  4. Step 4: Simplify right side
    77,639.64x = 3,225,876,265.57
  5. Step 5: Solve for x
    x = 3,225,876,265.57/77,639.64
  6. Step 6: Final answer
    x = 41,549.35

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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.