Home / 61,128.81-84,361.23-34,279.92

Finding the Fourth Proportional to 61,128.81, 84,361.23 and 34,279.92

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Solution

The fourth proportional to 61,128.81, 84,361.23 and 34,279.92 is: 47,308.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,128.81 : 84,361.23 = 34,279.92 : x
  2. Step 2: Convert to fraction form
    61,128.81/84,361.23 = 34,279.92/x
  3. Step 3: Cross multiply
    61,128.81x = 84,361.23 × 34,279.92
  4. Step 4: Simplify right side
    61,128.81x = 2,891,896,215.50
  5. Step 5: Solve for x
    x = 2,891,896,215.50/61,128.81
  6. Step 6: Final answer
    x = 47,308.24

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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.