Home / 86,914.66-119,943.93-56,719.30

Finding the Fourth Proportional to 86,914.66, 119,943.93 and 56,719.30

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Solution

The fourth proportional to 86,914.66, 119,943.93 and 56,719.30 is: 78,273.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,914.66 : 119,943.93 = 56,719.30 : x
  2. Step 2: Convert to fraction form
    86,914.66/119,943.93 = 56,719.30/x
  3. Step 3: Cross multiply
    86,914.66x = 119,943.93 × 56,719.30
  4. Step 4: Simplify right side
    86,914.66x = 6,803,135,748.85
  5. Step 5: Solve for x
    x = 6,803,135,748.85/86,914.66
  6. Step 6: Final answer
    x = 78,273.74

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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.