Home / 91,601.69-126,403.74-51,308.64

Finding the Fourth Proportional to 91,601.69, 126,403.74 and 51,308.64

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Solution

The fourth proportional to 91,601.69, 126,403.74 and 51,308.64 is: 70,802.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,601.69 : 126,403.74 = 51,308.64 : x
  2. Step 2: Convert to fraction form
    91,601.69/126,403.74 = 51,308.64/x
  3. Step 3: Cross multiply
    91,601.69x = 126,403.74 × 51,308.64
  4. Step 4: Simplify right side
    91,601.69x = 6,485,603,990.31
  5. Step 5: Solve for x
    x = 6,485,603,990.31/91,601.69
  6. Step 6: Final answer
    x = 70,802.23

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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.