Home / 87,313.96-120,461.64-57,116.48

Finding the Fourth Proportional to 87,313.96, 120,461.64 and 57,116.48

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Solution

The fourth proportional to 87,313.96, 120,461.64 and 57,116.48 is: 78,800.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,313.96 : 120,461.64 = 57,116.48 : x
  2. Step 2: Convert to fraction form
    87,313.96/120,461.64 = 57,116.48/x
  3. Step 3: Cross multiply
    87,313.96x = 120,461.64 × 57,116.48
  4. Step 4: Simplify right side
    87,313.96x = 6,880,344,851.83
  5. Step 5: Solve for x
    x = 6,880,344,851.83/87,313.96
  6. Step 6: Final answer
    x = 78,800.06

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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.