Home / 45,005.90-67,529.70-19,702.08

Finding the Fourth Proportional to 45,005.90, 67,529.70 and 19,702.08

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Solution

The fourth proportional to 45,005.90, 67,529.70 and 19,702.08 is: 29,562.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,005.90 : 67,529.70 = 19,702.08 : x
  2. Step 2: Convert to fraction form
    45,005.90/67,529.70 = 19,702.08/x
  3. Step 3: Cross multiply
    45,005.90x = 67,529.70 × 19,702.08
  4. Step 4: Simplify right side
    45,005.90x = 1,330,475,551.78
  5. Step 5: Solve for x
    x = 1,330,475,551.78/45,005.90
  6. Step 6: Final answer
    x = 29,562.25

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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.