Home / 91,970.39-126,915.05-53,733.48

Finding the Fourth Proportional to 91,970.39, 126,915.05 and 53,733.48

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Solution

The fourth proportional to 91,970.39, 126,915.05 and 53,733.48 is: 74,149.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,970.39 : 126,915.05 = 53,733.48 : x
  2. Step 2: Convert to fraction form
    91,970.39/126,915.05 = 53,733.48/x
  3. Step 3: Cross multiply
    91,970.39x = 126,915.05 × 53,733.48
  4. Step 4: Simplify right side
    91,970.39x = 6,819,587,300.87
  5. Step 5: Solve for x
    x = 6,819,587,300.87/91,970.39
  6. Step 6: Final answer
    x = 74,149.81

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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.