Home / 81,683.37-112,746.33-47,699.82

Finding the Fourth Proportional to 81,683.37, 112,746.33 and 47,699.82

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Solution

The fourth proportional to 81,683.37, 112,746.33 and 47,699.82 is: 65,839.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,683.37 : 112,746.33 = 47,699.82 : x
  2. Step 2: Convert to fraction form
    81,683.37/112,746.33 = 47,699.82/x
  3. Step 3: Cross multiply
    81,683.37x = 112,746.33 × 47,699.82
  4. Step 4: Simplify right side
    81,683.37x = 5,377,979,646.66
  5. Step 5: Solve for x
    x = 5,377,979,646.66/81,683.37
  6. Step 6: Final answer
    x = 65,839.35

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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.