Home / 86,920.16-119,955.76-49,194.40

Finding the Fourth Proportional to 86,920.16, 119,955.76 and 49,194.40

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Solution

The fourth proportional to 86,920.16, 119,955.76 and 49,194.40 is: 67,891.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920.16 : 119,955.76 = 49,194.40 : x
  2. Step 2: Convert to fraction form
    86,920.16/119,955.76 = 49,194.40/x
  3. Step 3: Cross multiply
    86,920.16x = 119,955.76 × 49,194.40
  4. Step 4: Simplify right side
    86,920.16x = 5,901,151,639.74
  5. Step 5: Solve for x
    x = 5,901,151,639.74/86,920.16
  6. Step 6: Final answer
    x = 67,891.63

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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.