Home / 57,030.91-78,665.60-36,580.61

Finding the Fourth Proportional to 57,030.91, 78,665.60 and 36,580.61

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Solution

The fourth proportional to 57,030.91, 78,665.60 and 36,580.61 is: 50,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,030.91 : 78,665.60 = 36,580.61 : x
  2. Step 2: Convert to fraction form
    57,030.91/78,665.60 = 36,580.61/x
  3. Step 3: Cross multiply
    57,030.91x = 78,665.60 × 36,580.61
  4. Step 4: Simplify right side
    57,030.91x = 2,877,635,922.13
  5. Step 5: Solve for x
    x = 2,877,635,922.13/57,030.91
  6. Step 6: Final answer
    x = 50,457.48

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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.