Home / 45,220.81-62,426.15-30,138.61

Finding the Fourth Proportional to 45,220.81, 62,426.15 and 30,138.61

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Solution

The fourth proportional to 45,220.81, 62,426.15 and 30,138.61 is: 41,605.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,220.81 : 62,426.15 = 30,138.61 : x
  2. Step 2: Convert to fraction form
    45,220.81/62,426.15 = 30,138.61/x
  3. Step 3: Cross multiply
    45,220.81x = 62,426.15 × 30,138.61
  4. Step 4: Simplify right side
    45,220.81x = 1,881,437,388.65
  5. Step 5: Solve for x
    x = 1,881,437,388.65/45,220.81
  6. Step 6: Final answer
    x = 41,605.57

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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.