Home / 56,854.24-78,459.49-31,361.51

Finding the Fourth Proportional to 56,854.24, 78,459.49 and 31,361.51

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Solution

The fourth proportional to 56,854.24, 78,459.49 and 31,361.51 is: 43,279.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,854.24 : 78,459.49 = 31,361.51 : x
  2. Step 2: Convert to fraction form
    56,854.24/78,459.49 = 31,361.51/x
  3. Step 3: Cross multiply
    56,854.24x = 78,459.49 × 31,361.51
  4. Step 4: Simplify right side
    56,854.24x = 2,460,607,923.42
  5. Step 5: Solve for x
    x = 2,460,607,923.42/56,854.24
  6. Step 6: Final answer
    x = 43,279.23

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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.