Home / 86,045.64-118,701.59-55,840.44

Finding the Fourth Proportional to 86,045.64, 118,701.59 and 55,840.44

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Solution

The fourth proportional to 86,045.64, 118,701.59 and 55,840.44 is: 77,032.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,045.64 : 118,701.59 = 55,840.44 : x
  2. Step 2: Convert to fraction form
    86,045.64/118,701.59 = 55,840.44/x
  3. Step 3: Cross multiply
    86,045.64x = 118,701.59 × 55,840.44
  4. Step 4: Simplify right side
    86,045.64x = 6,628,348,560.39
  5. Step 5: Solve for x
    x = 6,628,348,560.39/86,045.64
  6. Step 6: Final answer
    x = 77,032.94

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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.