Home / 79,725.60-119,588.40-53,287.20

Finding the Fourth Proportional to 79,725.60, 119,588.40 and 53,287.20

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Solution

The fourth proportional to 79,725.60, 119,588.40 and 53,287.20 is: 79,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,725.60 : 119,588.40 = 53,287.20 : x
  2. Step 2: Convert to fraction form
    79,725.60/119,588.40 = 53,287.20/x
  3. Step 3: Cross multiply
    79,725.60x = 119,588.40 × 53,287.20
  4. Step 4: Simplify right side
    79,725.60x = 6,372,530,988.48
  5. Step 5: Solve for x
    x = 6,372,530,988.48/79,725.60
  6. Step 6: Final answer
    x = 79,930.80

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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.