Home / 82,430.60-123,678.30-32,502.20

Finding the Fourth Proportional to 82,430.60, 123,678.30 and 32,502.20

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Solution

The fourth proportional to 82,430.60, 123,678.30 and 32,502.20 is: 48,766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,430.60 : 123,678.30 = 32,502.20 : x
  2. Step 2: Convert to fraction form
    82,430.60/123,678.30 = 32,502.20/x
  3. Step 3: Cross multiply
    82,430.60x = 123,678.30 × 32,502.20
  4. Step 4: Simplify right side
    82,430.60x = 4,019,816,842.26
  5. Step 5: Solve for x
    x = 4,019,816,842.26/82,430.60
  6. Step 6: Final answer
    x = 48,766.08

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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.