Home / 45,222.81-62,428.91-30,140.61

Finding the Fourth Proportional to 45,222.81, 62,428.91 and 30,140.61

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Solution

The fourth proportional to 45,222.81, 62,428.91 and 30,140.61 is: 41,608.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,222.81 : 62,428.91 = 30,140.61 : x
  2. Step 2: Convert to fraction form
    45,222.81/62,428.91 = 30,140.61/x
  3. Step 3: Cross multiply
    45,222.81x = 62,428.91 × 30,140.61
  4. Step 4: Simplify right side
    45,222.81x = 1,881,645,278.33
  5. Step 5: Solve for x
    x = 1,881,645,278.33/45,222.81
  6. Step 6: Final answer
    x = 41,608.32

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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.