Home / 82,734.80-123,810.60-57,657.20

Finding the Fourth Proportional to 82,734.80, 123,810.60 and 57,657.20

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Solution

The fourth proportional to 82,734.80, 123,810.60 and 57,657.20 is: 86,282.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,734.80 : 123,810.60 = 57,657.20 : x
  2. Step 2: Convert to fraction form
    82,734.80/123,810.60 = 57,657.20/x
  3. Step 3: Cross multiply
    82,734.80x = 123,810.60 × 57,657.20
  4. Step 4: Simplify right side
    82,734.80x = 7,138,572,526.32
  5. Step 5: Solve for x
    x = 7,138,572,526.32/82,734.80
  6. Step 6: Final answer
    x = 86,282.59

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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.