Home / 79,696.49-109,981.47-47,865.92

Finding the Fourth Proportional to 79,696.49, 109,981.47 and 47,865.92

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Solution

The fourth proportional to 79,696.49, 109,981.47 and 47,865.92 is: 66,055.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,696.49 : 109,981.47 = 47,865.92 : x
  2. Step 2: Convert to fraction form
    79,696.49/109,981.47 = 47,865.92/x
  3. Step 3: Cross multiply
    79,696.49x = 109,981.47 × 47,865.92
  4. Step 4: Simplify right side
    79,696.49x = 5,264,364,244.50
  5. Step 5: Solve for x
    x = 5,264,364,244.50/79,696.49
  6. Step 6: Final answer
    x = 66,055.16

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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.