Home / 78,116.04-107,810.87-47,896.02

Finding the Fourth Proportional to 78,116.04, 107,810.87 and 47,896.02

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Solution

The fourth proportional to 78,116.04, 107,810.87 and 47,896.02 is: 66,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,116.04 : 107,810.87 = 47,896.02 : x
  2. Step 2: Convert to fraction form
    78,116.04/107,810.87 = 47,896.02/x
  3. Step 3: Cross multiply
    78,116.04x = 107,810.87 × 47,896.02
  4. Step 4: Simplify right side
    78,116.04x = 5,163,711,346.26
  5. Step 5: Solve for x
    x = 5,163,711,346.26/78,116.04
  6. Step 6: Final answer
    x = 66,103.09

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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.