Home / 81,511.04-112,488.12-47,541.24

Finding the Fourth Proportional to 81,511.04, 112,488.12 and 47,541.24

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Solution

The fourth proportional to 81,511.04, 112,488.12 and 47,541.24 is: 65,608.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,511.04 : 112,488.12 = 47,541.24 : x
  2. Step 2: Convert to fraction form
    81,511.04/112,488.12 = 47,541.24/x
  3. Step 3: Cross multiply
    81,511.04x = 112,488.12 × 47,541.24
  4. Step 4: Simplify right side
    81,511.04x = 5,347,824,710.07
  5. Step 5: Solve for x
    x = 5,347,824,710.07/81,511.04
  6. Step 6: Final answer
    x = 65,608.59

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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.