Home / 56,708.17-78,256.66-31,213.99

Finding the Fourth Proportional to 56,708.17, 78,256.66 and 31,213.99

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Solution

The fourth proportional to 56,708.17, 78,256.66 and 31,213.99 is: 43,074.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,708.17 : 78,256.66 = 31,213.99 : x
  2. Step 2: Convert to fraction form
    56,708.17/78,256.66 = 31,213.99/x
  3. Step 3: Cross multiply
    56,708.17x = 78,256.66 × 31,213.99
  4. Step 4: Simplify right side
    56,708.17x = 2,442,702,602.67
  5. Step 5: Solve for x
    x = 2,442,702,602.67/56,708.17
  6. Step 6: Final answer
    x = 43,074.97

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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.