Home / 56,461.79-77,917.25-31,311.29

Finding the Fourth Proportional to 56,461.79, 77,917.25 and 31,311.29

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Solution

The fourth proportional to 56,461.79, 77,917.25 and 31,311.29 is: 43,209.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,461.79 : 77,917.25 = 31,311.29 : x
  2. Step 2: Convert to fraction form
    56,461.79/77,917.25 = 31,311.29/x
  3. Step 3: Cross multiply
    56,461.79x = 77,917.25 × 31,311.29
  4. Step 4: Simplify right side
    56,461.79x = 2,439,689,883.82
  5. Step 5: Solve for x
    x = 2,439,689,883.82/56,461.79
  6. Step 6: Final answer
    x = 43,209.57

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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.