Home / 87,259.92-120,415.53-53,325.21

Finding the Fourth Proportional to 87,259.92, 120,415.53 and 53,325.21

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Solution

The fourth proportional to 87,259.92, 120,415.53 and 53,325.21 is: 73,586.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,259.92 : 120,415.53 = 53,325.21 : x
  2. Step 2: Convert to fraction form
    87,259.92/120,415.53 = 53,325.21/x
  3. Step 3: Cross multiply
    87,259.92x = 120,415.53 × 53,325.21
  4. Step 4: Simplify right side
    87,259.92x = 6,421,183,424.51
  5. Step 5: Solve for x
    x = 6,421,183,424.51/87,259.92
  6. Step 6: Final answer
    x = 73,586.86

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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.