Home / 85,615.47-118,122.57-51,634.35

Finding the Fourth Proportional to 85,615.47, 118,122.57 and 51,634.35

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Solution

The fourth proportional to 85,615.47, 118,122.57 and 51,634.35 is: 71,239.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,615.47 : 118,122.57 = 51,634.35 : x
  2. Step 2: Convert to fraction form
    85,615.47/118,122.57 = 51,634.35/x
  3. Step 3: Cross multiply
    85,615.47x = 118,122.57 × 51,634.35
  4. Step 4: Simplify right side
    85,615.47x = 6,099,182,122.28
  5. Step 5: Solve for x
    x = 6,099,182,122.28/85,615.47
  6. Step 6: Final answer
    x = 71,239.25

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1.5x scale

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.