Home / 83,851.60-115,708.88-46,128.28

Finding the Fourth Proportional to 83,851.60, 115,708.88 and 46,128.28

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Solution

The fourth proportional to 83,851.60, 115,708.88 and 46,128.28 is: 63,653.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,851.60 : 115,708.88 = 46,128.28 : x
  2. Step 2: Convert to fraction form
    83,851.60/115,708.88 = 46,128.28/x
  3. Step 3: Cross multiply
    83,851.60x = 115,708.88 × 46,128.28
  4. Step 4: Simplify right side
    83,851.60x = 5,337,451,615.13
  5. Step 5: Solve for x
    x = 5,337,451,615.13/83,851.60
  6. Step 6: Final answer
    x = 63,653.55

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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.