Home / 58,665.40-87,803.70-53,999.80

Finding the Fourth Proportional to 58,665.40, 87,803.70 and 53,999.80

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Solution

The fourth proportional to 58,665.40, 87,803.70 and 53,999.80 is: 80,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,665.40 : 87,803.70 = 53,999.80 : x
  2. Step 2: Convert to fraction form
    58,665.40/87,803.70 = 53,999.80/x
  3. Step 3: Cross multiply
    58,665.40x = 87,803.70 × 53,999.80
  4. Step 4: Simplify right side
    58,665.40x = 4,741,382,239.26
  5. Step 5: Solve for x
    x = 4,741,382,239.26/58,665.40
  6. Step 6: Final answer
    x = 80,820.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.