Home / 56,786.16-78,368.37-31,292.53

Finding the Fourth Proportional to 56,786.16, 78,368.37 and 31,292.53

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Solution

The fourth proportional to 56,786.16, 78,368.37 and 31,292.53 is: 43,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,786.16 : 78,368.37 = 31,292.53 : x
  2. Step 2: Convert to fraction form
    56,786.16/78,368.37 = 31,292.53/x
  3. Step 3: Cross multiply
    56,786.16x = 78,368.37 × 31,292.53
  4. Step 4: Simplify right side
    56,786.16x = 2,452,344,569.28
  5. Step 5: Solve for x
    x = 2,452,344,569.28/56,786.16
  6. Step 6: Final answer
    x = 43,185.60

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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.