Home / 45,321.72-62,545.74-31,011.55

Finding the Fourth Proportional to 45,321.72, 62,545.74 and 31,011.55

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Solution

The fourth proportional to 45,321.72, 62,545.74 and 31,011.55 is: 42,797.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,321.72 : 62,545.74 = 31,011.55 : x
  2. Step 2: Convert to fraction form
    45,321.72/62,545.74 = 31,011.55/x
  3. Step 3: Cross multiply
    45,321.72x = 62,545.74 × 31,011.55
  4. Step 4: Simplify right side
    45,321.72x = 1,939,640,188.24
  5. Step 5: Solve for x
    x = 1,939,640,188.24/45,321.72
  6. Step 6: Final answer
    x = 42,797.14

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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.