Home / 80,056.49-120,159.98-40,641.89

Finding the Fourth Proportional to 80,056.49, 120,159.98 and 40,641.89

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Solution

The fourth proportional to 80,056.49, 120,159.98 and 40,641.89 is: 61,001.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,056.49 : 120,159.98 = 40,641.89 : x
  2. Step 2: Convert to fraction form
    80,056.49/120,159.98 = 40,641.89/x
  3. Step 3: Cross multiply
    80,056.49x = 120,159.98 × 40,641.89
  4. Step 4: Simplify right side
    80,056.49x = 4,883,528,486.35
  5. Step 5: Solve for x
    x = 4,883,528,486.35/80,056.49
  6. Step 6: Final answer
    x = 61,001.03

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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.