Home / 87,698.35-131,547.43-31,538.62

Finding the Fourth Proportional to 87,698.35, 131,547.43 and 31,538.62

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Solution

The fourth proportional to 87,698.35, 131,547.43 and 31,538.62 is: 47,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,698.35 : 131,547.43 = 31,538.62 : x
  2. Step 2: Convert to fraction form
    87,698.35/131,547.43 = 31,538.62/x
  3. Step 3: Cross multiply
    87,698.35x = 131,547.43 × 31,538.62
  4. Step 4: Simplify right side
    87,698.35x = 4,148,824,406.75
  5. Step 5: Solve for x
    x = 4,148,824,406.75/87,698.35
  6. Step 6: Final answer
    x = 47,307.90

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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.