Home / 53,830.60-80,760.30-38,278.60

Finding the Fourth Proportional to 53,830.60, 80,760.30 and 38,278.60

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Solution

The fourth proportional to 53,830.60, 80,760.30 and 38,278.60 is: 57,428.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,830.60 : 80,760.30 = 38,278.60 : x
  2. Step 2: Convert to fraction form
    53,830.60/80,760.30 = 38,278.60/x
  3. Step 3: Cross multiply
    53,830.60x = 80,760.30 × 38,278.60
  4. Step 4: Simplify right side
    53,830.60x = 3,091,391,219.58
  5. Step 5: Solve for x
    x = 3,091,391,219.58/53,830.60
  6. Step 6: Final answer
    x = 57,428.14

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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.