Home / 53,685.60-80,528.40-53,167.20

Finding the Fourth Proportional to 53,685.60, 80,528.40 and 53,167.20

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Solution

The fourth proportional to 53,685.60, 80,528.40 and 53,167.20 is: 79,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,685.60 : 80,528.40 = 53,167.20 : x
  2. Step 2: Convert to fraction form
    53,685.60/80,528.40 = 53,167.20/x
  3. Step 3: Cross multiply
    53,685.60x = 80,528.40 × 53,167.20
  4. Step 4: Simplify right side
    53,685.60x = 4,281,469,548.48
  5. Step 5: Solve for x
    x = 4,281,469,548.48/53,685.60
  6. Step 6: Final answer
    x = 79,750.80

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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.