Home / 54,079.34-81,061.56-31,903.16

Finding the Fourth Proportional to 54,079.34, 81,061.56 and 31,903.16

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Solution

The fourth proportional to 54,079.34, 81,061.56 and 31,903.16 is: 47,820.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,079.34 : 81,061.56 = 31,903.16 : x
  2. Step 2: Convert to fraction form
    54,079.34/81,061.56 = 31,903.16/x
  3. Step 3: Cross multiply
    54,079.34x = 81,061.56 × 31,903.16
  4. Step 4: Simplify right side
    54,079.34x = 2,586,119,513.22
  5. Step 5: Solve for x
    x = 2,586,119,513.22/54,079.34
  6. Step 6: Final answer
    x = 47,820.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.