Home / 86,911.97-119,945.07-48,669.57

Finding the Fourth Proportional to 86,911.97, 119,945.07 and 48,669.57

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Solution

The fourth proportional to 86,911.97, 119,945.07 and 48,669.57 is: 67,167.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,911.97 : 119,945.07 = 48,669.57 : x
  2. Step 2: Convert to fraction form
    86,911.97/119,945.07 = 48,669.57/x
  3. Step 3: Cross multiply
    86,911.97x = 119,945.07 × 48,669.57
  4. Step 4: Simplify right side
    86,911.97x = 5,837,674,980.52
  5. Step 5: Solve for x
    x = 5,837,674,980.52/86,911.97
  6. Step 6: Final answer
    x = 67,167.68

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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.