Home / 87,353.13-120,563.32-57,165.24

Finding the Fourth Proportional to 87,353.13, 120,563.32 and 57,165.24

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Solution

The fourth proportional to 87,353.13, 120,563.32 and 57,165.24 is: 78,898.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,353.13 : 120,563.32 = 57,165.24 : x
  2. Step 2: Convert to fraction form
    87,353.13/120,563.32 = 57,165.24/x
  3. Step 3: Cross multiply
    87,353.13x = 120,563.32 × 57,165.24
  4. Step 4: Simplify right side
    87,353.13x = 6,892,031,123.00
  5. Step 5: Solve for x
    x = 6,892,031,123.00/87,353.13
  6. Step 6: Final answer
    x = 78,898.50

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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.