Home / 82,365.96-123,685.62-51,398.04

Finding the Fourth Proportional to 82,365.96, 123,685.62 and 51,398.04

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Solution

The fourth proportional to 82,365.96, 123,685.62 and 51,398.04 is: 77,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,365.96 : 123,685.62 = 51,398.04 : x
  2. Step 2: Convert to fraction form
    82,365.96/123,685.62 = 51,398.04/x
  3. Step 3: Cross multiply
    82,365.96x = 123,685.62 × 51,398.04
  4. Step 4: Simplify right side
    82,365.96x = 6,357,198,444.18
  5. Step 5: Solve for x
    x = 6,357,198,444.18/82,365.96
  6. Step 6: Final answer
    x = 77,182.35

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1.5x scale

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.