Home / 86,649.08-119,511.72-54,787.25

Finding the Fourth Proportional to 86,649.08, 119,511.72 and 54,787.25

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Solution

The fourth proportional to 86,649.08, 119,511.72 and 54,787.25 is: 75,565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,649.08 : 119,511.72 = 54,787.25 : x
  2. Step 2: Convert to fraction form
    86,649.08/119,511.72 = 54,787.25/x
  3. Step 3: Cross multiply
    86,649.08x = 119,511.72 × 54,787.25
  4. Step 4: Simplify right side
    86,649.08x = 6,547,718,780.35
  5. Step 5: Solve for x
    x = 6,547,718,780.35/86,649.08
  6. Step 6: Final answer
    x = 75,565.94

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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.