Home / 71,870.20-107,999.70-63,316.60

Finding the Fourth Proportional to 71,870.20, 107,999.70 and 63,316.60

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Solution

The fourth proportional to 71,870.20, 107,999.70 and 63,316.60 is: 95,146.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,870.20 : 107,999.70 = 63,316.60 : x
  2. Step 2: Convert to fraction form
    71,870.20/107,999.70 = 63,316.60/x
  3. Step 3: Cross multiply
    71,870.20x = 107,999.70 × 63,316.60
  4. Step 4: Simplify right side
    71,870.20x = 6,838,173,805.02
  5. Step 5: Solve for x
    x = 6,838,173,805.02/71,870.20
  6. Step 6: Final answer
    x = 95,146.16

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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.