Home / 54,051.18-74,606.31-31,395.30

Finding the Fourth Proportional to 54,051.18, 74,606.31 and 31,395.30

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Solution

The fourth proportional to 54,051.18, 74,606.31 and 31,395.30 is: 43,334.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,051.18 : 74,606.31 = 31,395.30 : x
  2. Step 2: Convert to fraction form
    54,051.18/74,606.31 = 31,395.30/x
  3. Step 3: Cross multiply
    54,051.18x = 74,606.31 × 31,395.30
  4. Step 4: Simplify right side
    54,051.18x = 2,342,287,484.34
  5. Step 5: Solve for x
    x = 2,342,287,484.34/54,051.18
  6. Step 6: Final answer
    x = 43,334.62

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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.