Home / 72,056.40-107,998.20-53,566.80

Finding the Fourth Proportional to 72,056.40, 107,998.20 and 53,566.80

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Solution

The fourth proportional to 72,056.40, 107,998.20 and 53,566.80 is: 80,285.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,056.40 : 107,998.20 = 53,566.80 : x
  2. Step 2: Convert to fraction form
    72,056.40/107,998.20 = 53,566.80/x
  3. Step 3: Cross multiply
    72,056.40x = 107,998.20 × 53,566.80
  4. Step 4: Simplify right side
    72,056.40x = 5,785,117,979.76
  5. Step 5: Solve for x
    x = 5,785,117,979.76/72,056.40
  6. Step 6: Final answer
    x = 80,285.97

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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.