Home / 91,778.09-126,677.05-62,718.24

Finding the Fourth Proportional to 91,778.09, 126,677.05 and 62,718.24

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Solution

The fourth proportional to 91,778.09, 126,677.05 and 62,718.24 is: 86,567.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,778.09 : 126,677.05 = 62,718.24 : x
  2. Step 2: Convert to fraction form
    91,778.09/126,677.05 = 62,718.24/x
  3. Step 3: Cross multiply
    91,778.09x = 126,677.05 × 62,718.24
  4. Step 4: Simplify right side
    91,778.09x = 7,944,961,467.60
  5. Step 5: Solve for x
    x = 7,944,961,467.60/91,778.09
  6. Step 6: Final answer
    x = 86,567.08

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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.