Home / 91,867.36-126,790.82-56,078.20

Finding the Fourth Proportional to 91,867.36, 126,790.82 and 56,078.20

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Solution

The fourth proportional to 91,867.36, 126,790.82 and 56,078.20 is: 77,396.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,867.36 : 126,790.82 = 56,078.20 : x
  2. Step 2: Convert to fraction form
    91,867.36/126,790.82 = 56,078.20/x
  3. Step 3: Cross multiply
    91,867.36x = 126,790.82 × 56,078.20
  4. Step 4: Simplify right side
    91,867.36x = 7,110,200,962.12
  5. Step 5: Solve for x
    x = 7,110,200,962.12/91,867.36
  6. Step 6: Final answer
    x = 77,396.38

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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.