Home / 63,045.73-86,999.56-39,172.20

Finding the Fourth Proportional to 63,045.73, 86,999.56 and 39,172.20

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Solution

The fourth proportional to 63,045.73, 86,999.56 and 39,172.20 is: 54,055.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,045.73 : 86,999.56 = 39,172.20 : x
  2. Step 2: Convert to fraction form
    63,045.73/86,999.56 = 39,172.20/x
  3. Step 3: Cross multiply
    63,045.73x = 86,999.56 × 39,172.20
  4. Step 4: Simplify right side
    63,045.73x = 3,407,964,164.23
  5. Step 5: Solve for x
    x = 3,407,964,164.23/63,045.73
  6. Step 6: Final answer
    x = 54,055.43

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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.