Home / 57,693.36-79,543.92-49,071.12

Finding the Fourth Proportional to 57,693.36, 79,543.92 and 49,071.12

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Solution

The fourth proportional to 57,693.36, 79,543.92 and 49,071.12 is: 67,656.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,693.36 : 79,543.92 = 49,071.12 : x
  2. Step 2: Convert to fraction form
    57,693.36/79,543.92 = 49,071.12/x
  3. Step 3: Cross multiply
    57,693.36x = 79,543.92 × 49,071.12
  4. Step 4: Simplify right side
    57,693.36x = 3,903,309,129.32
  5. Step 5: Solve for x
    x = 3,903,309,129.32/57,693.36
  6. Step 6: Final answer
    x = 67,656.12

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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.