Home / 52,170.24-78,080.40-42,809.88

Finding the Fourth Proportional to 52,170.24, 78,080.40 and 42,809.88

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Solution

The fourth proportional to 52,170.24, 78,080.40 and 42,809.88 is: 64,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,170.24 : 78,080.40 = 42,809.88 : x
  2. Step 2: Convert to fraction form
    52,170.24/78,080.40 = 42,809.88/x
  3. Step 3: Cross multiply
    52,170.24x = 78,080.40 × 42,809.88
  4. Step 4: Simplify right side
    52,170.24x = 3,342,612,554.35
  5. Step 5: Solve for x
    x = 3,342,612,554.35/52,170.24
  6. Step 6: Final answer
    x = 64,071.25

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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.