Home / 85,913.25-118,550.75-47,671.53

Finding the Fourth Proportional to 85,913.25, 118,550.75 and 47,671.53

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Solution

The fourth proportional to 85,913.25, 118,550.75 and 47,671.53 is: 65,781.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,913.25 : 118,550.75 = 47,671.53 : x
  2. Step 2: Convert to fraction form
    85,913.25/118,550.75 = 47,671.53/x
  3. Step 3: Cross multiply
    85,913.25x = 118,550.75 × 47,671.53
  4. Step 4: Simplify right side
    85,913.25x = 5,651,495,635.15
  5. Step 5: Solve for x
    x = 5,651,495,635.15/85,913.25
  6. Step 6: Final answer
    x = 65,781.42

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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.