Home / 78,629.04-108,506.52-42,819.48

Finding the Fourth Proportional to 78,629.04, 108,506.52 and 42,819.48

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Solution

The fourth proportional to 78,629.04, 108,506.52 and 42,819.48 is: 59,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,629.04 : 108,506.52 = 42,819.48 : x
  2. Step 2: Convert to fraction form
    78,629.04/108,506.52 = 42,819.48/x
  3. Step 3: Cross multiply
    78,629.04x = 108,506.52 × 42,819.48
  4. Step 4: Simplify right side
    78,629.04x = 4,646,192,763.01
  5. Step 5: Solve for x
    x = 4,646,192,763.01/78,629.04
  6. Step 6: Final answer
    x = 59,090.04

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1.5x scale

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.