Home / 57,627.58-79,557.39-39,818.32

Finding the Fourth Proportional to 57,627.58, 79,557.39 and 39,818.32

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Solution

The fourth proportional to 57,627.58, 79,557.39 and 39,818.32 is: 54,970.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,627.58 : 79,557.39 = 39,818.32 : x
  2. Step 2: Convert to fraction form
    57,627.58/79,557.39 = 39,818.32/x
  3. Step 3: Cross multiply
    57,627.58x = 79,557.39 × 39,818.32
  4. Step 4: Simplify right side
    57,627.58x = 3,167,841,613.38
  5. Step 5: Solve for x
    x = 3,167,841,613.38/57,627.58
  6. Step 6: Final answer
    x = 54,970.93

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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.