Home / 43,135.17-64,702.38-11,970.42

Finding the Fourth Proportional to 43,135.17, 64,702.38 and 11,970.42

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Solution

The fourth proportional to 43,135.17, 64,702.38 and 11,970.42 is: 17,955.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,135.17 : 64,702.38 = 11,970.42 : x
  2. Step 2: Convert to fraction form
    43,135.17/64,702.38 = 11,970.42/x
  3. Step 3: Cross multiply
    43,135.17x = 64,702.38 × 11,970.42
  4. Step 4: Simplify right side
    43,135.17x = 774,514,663.60
  5. Step 5: Solve for x
    x = 774,514,663.60/43,135.17
  6. Step 6: Final answer
    x = 17,955.53

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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.