Home / 87,705.39-131,547.15-51,702.51

Finding the Fourth Proportional to 87,705.39, 131,547.15 and 51,702.51

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Solution

The fourth proportional to 87,705.39, 131,547.15 and 51,702.51 is: 77,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,705.39 : 131,547.15 = 51,702.51 : x
  2. Step 2: Convert to fraction form
    87,705.39/131,547.15 = 51,702.51/x
  3. Step 3: Cross multiply
    87,705.39x = 131,547.15 × 51,702.51
  4. Step 4: Simplify right side
    87,705.39x = 6,801,317,838.35
  5. Step 5: Solve for x
    x = 6,801,317,838.35/87,705.39
  6. Step 6: Final answer
    x = 77,547.32

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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.