Home / 83,655.84-115,437.96-47,840.04

Finding the Fourth Proportional to 83,655.84, 115,437.96 and 47,840.04

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Solution

The fourth proportional to 83,655.84, 115,437.96 and 47,840.04 is: 66,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,655.84 : 115,437.96 = 47,840.04 : x
  2. Step 2: Convert to fraction form
    83,655.84/115,437.96 = 47,840.04/x
  3. Step 3: Cross multiply
    83,655.84x = 115,437.96 × 47,840.04
  4. Step 4: Simplify right side
    83,655.84x = 5,522,556,623.92
  5. Step 5: Solve for x
    x = 5,522,556,623.92/83,655.84
  6. Step 6: Final answer
    x = 66,015.20

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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.