Home / 47,345.47-65,309.19-30,343.66

Finding the Fourth Proportional to 47,345.47, 65,309.19 and 30,343.66

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Solution

The fourth proportional to 47,345.47, 65,309.19 and 30,343.66 is: 41,856.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,345.47 : 65,309.19 = 30,343.66 : x
  2. Step 2: Convert to fraction form
    47,345.47/65,309.19 = 30,343.66/x
  3. Step 3: Cross multiply
    47,345.47x = 65,309.19 × 30,343.66
  4. Step 4: Simplify right side
    47,345.47x = 1,981,719,856.24
  5. Step 5: Solve for x
    x = 1,981,719,856.24/47,345.47
  6. Step 6: Final answer
    x = 41,856.59

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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.