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Finding the Fourth Proportional to 57,445.80, 85,714.77 and 49,669.80

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Solution

The fourth proportional to 57,445.80, 85,714.77 and 49,669.80 is: 74,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,445.80 : 85,714.77 = 49,669.80 : x
  2. Step 2: Convert to fraction form
    57,445.80/85,714.77 = 49,669.80/x
  3. Step 3: Cross multiply
    57,445.80x = 85,714.77 × 49,669.80
  4. Step 4: Simplify right side
    57,445.80x = 4,257,435,482.95
  5. Step 5: Solve for x
    x = 4,257,435,482.95/57,445.80
  6. Step 6: Final answer
    x = 74,112.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.