Home / 81,666.18-112,702.05-45,862.56

Finding the Fourth Proportional to 81,666.18, 112,702.05 and 45,862.56

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Solution

The fourth proportional to 81,666.18, 112,702.05 and 45,862.56 is: 63,291.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,666.18 : 112,702.05 = 45,862.56 : x
  2. Step 2: Convert to fraction form
    81,666.18/112,702.05 = 45,862.56/x
  3. Step 3: Cross multiply
    81,666.18x = 112,702.05 × 45,862.56
  4. Step 4: Simplify right side
    81,666.18x = 5,168,804,530.25
  5. Step 5: Solve for x
    x = 5,168,804,530.25/81,666.18
  6. Step 6: Final answer
    x = 63,291.86

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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.