Home / 90,660.47-125,059.33-56,609.84

Finding the Fourth Proportional to 90,660.47, 125,059.33 and 56,609.84

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Solution

The fourth proportional to 90,660.47, 125,059.33 and 56,609.84 is: 78,089.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,660.47 : 125,059.33 = 56,609.84 : x
  2. Step 2: Convert to fraction form
    90,660.47/125,059.33 = 56,609.84/x
  3. Step 3: Cross multiply
    90,660.47x = 125,059.33 × 56,609.84
  4. Step 4: Simplify right side
    90,660.47x = 7,079,588,832.93
  5. Step 5: Solve for x
    x = 7,079,588,832.93/90,660.47
  6. Step 6: Final answer
    x = 78,089.04

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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.