Home / 85,731.44-118,309.28-47,490.98

Finding the Fourth Proportional to 85,731.44, 118,309.28 and 47,490.98

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Solution

The fourth proportional to 85,731.44, 118,309.28 and 47,490.98 is: 65,537.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,731.44 : 118,309.28 = 47,490.98 : x
  2. Step 2: Convert to fraction form
    85,731.44/118,309.28 = 47,490.98/x
  3. Step 3: Cross multiply
    85,731.44x = 118,309.28 × 47,490.98
  4. Step 4: Simplify right side
    85,731.44x = 5,618,622,821.29
  5. Step 5: Solve for x
    x = 5,618,622,821.29/85,731.44
  6. Step 6: Final answer
    x = 65,537.49

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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.