Home / 86,994.02-120,109.59-66,814.85

Finding the Fourth Proportional to 86,994.02, 120,109.59 and 66,814.85

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Solution

The fourth proportional to 86,994.02, 120,109.59 and 66,814.85 is: 92,248.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,994.02 : 120,109.59 = 66,814.85 : x
  2. Step 2: Convert to fraction form
    86,994.02/120,109.59 = 66,814.85/x
  3. Step 3: Cross multiply
    86,994.02x = 120,109.59 × 66,814.85
  4. Step 4: Simplify right side
    86,994.02x = 8,025,103,638.86
  5. Step 5: Solve for x
    x = 8,025,103,638.86/86,994.02
  6. Step 6: Final answer
    x = 92,248.92

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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.