Home / 45,065.87-67,667.60-38,136.72

Finding the Fourth Proportional to 45,065.87, 67,667.60 and 38,136.72

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Solution

The fourth proportional to 45,065.87, 67,667.60 and 38,136.72 is: 57,263.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,065.87 : 67,667.60 = 38,136.72 : x
  2. Step 2: Convert to fraction form
    45,065.87/67,667.60 = 38,136.72/x
  3. Step 3: Cross multiply
    45,065.87x = 67,667.60 × 38,136.72
  4. Step 4: Simplify right side
    45,065.87x = 2,580,620,123.59
  5. Step 5: Solve for x
    x = 2,580,620,123.59/45,065.87
  6. Step 6: Final answer
    x = 57,263.30

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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.