Home / 45,288.52-67,931.58-12,008.68

Finding the Fourth Proportional to 45,288.52, 67,931.58 and 12,008.68

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Solution

The fourth proportional to 45,288.52, 67,931.58 and 12,008.68 is: 18,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,288.52 : 67,931.58 = 12,008.68 : x
  2. Step 2: Convert to fraction form
    45,288.52/67,931.58 = 12,008.68/x
  3. Step 3: Cross multiply
    45,288.52x = 67,931.58 × 12,008.68
  4. Step 4: Simplify right side
    45,288.52x = 815,768,606.11
  5. Step 5: Solve for x
    x = 815,768,606.11/45,288.52
  6. Step 6: Final answer
    x = 18,012.70

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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.