Home / 85,989.60-118,672.02-51,999.39

Finding the Fourth Proportional to 85,989.60, 118,672.02 and 51,999.39

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Solution

The fourth proportional to 85,989.60, 118,672.02 and 51,999.39 is: 71,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,989.60 : 118,672.02 = 51,999.39 : x
  2. Step 2: Convert to fraction form
    85,989.60/118,672.02 = 51,999.39/x
  3. Step 3: Cross multiply
    85,989.60x = 118,672.02 × 51,999.39
  4. Step 4: Simplify right side
    85,989.60x = 6,170,872,650.07
  5. Step 5: Solve for x
    x = 6,170,872,650.07/85,989.60
  6. Step 6: Final answer
    x = 71,763.01

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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.