Home / 60,780.20-91,177.58-18,654.77

Finding the Fourth Proportional to 60,780.20, 91,177.58 and 18,654.77

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Solution

The fourth proportional to 60,780.20, 91,177.58 and 18,654.77 is: 27,984.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,780.20 : 91,177.58 = 18,654.77 : x
  2. Step 2: Convert to fraction form
    60,780.20/91,177.58 = 18,654.77/x
  3. Step 3: Cross multiply
    60,780.20x = 91,177.58 × 18,654.77
  4. Step 4: Simplify right side
    60,780.20x = 1,700,896,690.78
  5. Step 5: Solve for x
    x = 1,700,896,690.78/60,780.20
  6. Step 6: Final answer
    x = 27,984.39

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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.