Home / 53,835.60-80,801.40-31,621.20

Finding the Fourth Proportional to 53,835.60, 80,801.40 and 31,621.20

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Solution

The fourth proportional to 53,835.60, 80,801.40 and 31,621.20 is: 47,459.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,835.60 : 80,801.40 = 31,621.20 : x
  2. Step 2: Convert to fraction form
    53,835.60/80,801.40 = 31,621.20/x
  3. Step 3: Cross multiply
    53,835.60x = 80,801.40 × 31,621.20
  4. Step 4: Simplify right side
    53,835.60x = 2,555,037,229.68
  5. Step 5: Solve for x
    x = 2,555,037,229.68/53,835.60
  6. Step 6: Final answer
    x = 47,459.99

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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.