Home / 84,086.13-126,159.95-39,128.93

Finding the Fourth Proportional to 84,086.13, 126,159.95 and 39,128.93

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Solution

The fourth proportional to 84,086.13, 126,159.95 and 39,128.93 is: 58,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,086.13 : 126,159.95 = 39,128.93 : x
  2. Step 2: Convert to fraction form
    84,086.13/126,159.95 = 39,128.93/x
  3. Step 3: Cross multiply
    84,086.13x = 126,159.95 × 39,128.93
  4. Step 4: Simplify right side
    84,086.13x = 4,936,504,265.58
  5. Step 5: Solve for x
    x = 4,936,504,265.58/84,086.13
  6. Step 6: Final answer
    x = 58,707.71

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1.5x scale

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.