Home / 91,532.12-126,308.21-51,239.07

Finding the Fourth Proportional to 91,532.12, 126,308.21 and 51,239.07

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Solution

The fourth proportional to 91,532.12, 126,308.21 and 51,239.07 is: 70,706.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,532.12 : 126,308.21 = 51,239.07 : x
  2. Step 2: Convert to fraction form
    91,532.12/126,308.21 = 51,239.07/x
  3. Step 3: Cross multiply
    91,532.12x = 126,308.21 × 51,239.07
  4. Step 4: Simplify right side
    91,532.12x = 6,471,914,957.57
  5. Step 5: Solve for x
    x = 6,471,914,957.57/91,532.12
  6. Step 6: Final answer
    x = 70,706.49

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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.