Home / 45,131.28-67,667.40-42,653.04

Finding the Fourth Proportional to 45,131.28, 67,667.40 and 42,653.04

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Solution

The fourth proportional to 45,131.28, 67,667.40 and 42,653.04 is: 63,951.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,131.28 : 67,667.40 = 42,653.04 : x
  2. Step 2: Convert to fraction form
    45,131.28/67,667.40 = 42,653.04/x
  3. Step 3: Cross multiply
    45,131.28x = 67,667.40 × 42,653.04
  4. Step 4: Simplify right side
    45,131.28x = 2,886,220,318.90
  5. Step 5: Solve for x
    x = 2,886,220,318.90/45,131.28
  6. Step 6: Final answer
    x = 63,951.66

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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.