Home / 87,477.76-120,579.60-59,134.24

Finding the Fourth Proportional to 87,477.76, 120,579.60 and 59,134.24

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Solution

The fourth proportional to 87,477.76, 120,579.60 and 59,134.24 is: 81,510.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,477.76 : 120,579.60 = 59,134.24 : x
  2. Step 2: Convert to fraction form
    87,477.76/120,579.60 = 59,134.24/x
  3. Step 3: Cross multiply
    87,477.76x = 120,579.60 × 59,134.24
  4. Step 4: Simplify right side
    87,477.76x = 7,130,383,005.50
  5. Step 5: Solve for x
    x = 7,130,383,005.50/87,477.76
  6. Step 6: Final answer
    x = 81,510.81

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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.