Home / 52,136.92-71,947.20-30,903.58

Finding the Fourth Proportional to 52,136.92, 71,947.20 and 30,903.58

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Solution

The fourth proportional to 52,136.92, 71,947.20 and 30,903.58 is: 42,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,136.92 : 71,947.20 = 30,903.58 : x
  2. Step 2: Convert to fraction form
    52,136.92/71,947.20 = 30,903.58/x
  3. Step 3: Cross multiply
    52,136.92x = 71,947.20 × 30,903.58
  4. Step 4: Simplify right side
    52,136.92x = 2,223,426,050.98
  5. Step 5: Solve for x
    x = 2,223,426,050.98/52,136.92
  6. Step 6: Final answer
    x = 42,645.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.