Home / 87,346.05-120,533.77-53,411.10

Finding the Fourth Proportional to 87,346.05, 120,533.77 and 53,411.10

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Solution

The fourth proportional to 87,346.05, 120,533.77 and 53,411.10 is: 73,705.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,346.05 : 120,533.77 = 53,411.10 : x
  2. Step 2: Convert to fraction form
    87,346.05/120,533.77 = 53,411.10/x
  3. Step 3: Cross multiply
    87,346.05x = 120,533.77 × 53,411.10
  4. Step 4: Simplify right side
    87,346.05x = 6,437,840,857.61
  5. Step 5: Solve for x
    x = 6,437,840,857.61/87,346.05
  6. Step 6: Final answer
    x = 73,705.01

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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.