Home / 56,310.84-77,705.46-31,160.88

Finding the Fourth Proportional to 56,310.84, 77,705.46 and 31,160.88

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Solution

The fourth proportional to 56,310.84, 77,705.46 and 31,160.88 is: 43,000.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,310.84 : 77,705.46 = 31,160.88 : x
  2. Step 2: Convert to fraction form
    56,310.84/77,705.46 = 31,160.88/x
  3. Step 3: Cross multiply
    56,310.84x = 77,705.46 × 31,160.88
  4. Step 4: Simplify right side
    56,310.84x = 2,421,370,514.40
  5. Step 5: Solve for x
    x = 2,421,370,514.40/56,310.84
  6. Step 6: Final answer
    x = 43,000.08

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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.