Home / 45,220.56-62,425.80-30,138.36

Finding the Fourth Proportional to 45,220.56, 62,425.80 and 30,138.36

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Solution

The fourth proportional to 45,220.56, 62,425.80 and 30,138.36 is: 41,605.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,220.56 : 62,425.80 = 30,138.36 : x
  2. Step 2: Convert to fraction form
    45,220.56/62,425.80 = 30,138.36/x
  3. Step 3: Cross multiply
    45,220.56x = 62,425.80 × 30,138.36
  4. Step 4: Simplify right side
    45,220.56x = 1,881,411,233.69
  5. Step 5: Solve for x
    x = 1,881,411,233.69/45,220.56
  6. Step 6: Final answer
    x = 41,605.22

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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.