Home / 57,278.16-79,042.39-31,784.42

Finding the Fourth Proportional to 57,278.16, 79,042.39 and 31,784.42

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Solution

The fourth proportional to 57,278.16, 79,042.39 and 31,784.42 is: 43,861.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,278.16 : 79,042.39 = 31,784.42 : x
  2. Step 2: Convert to fraction form
    57,278.16/79,042.39 = 31,784.42/x
  3. Step 3: Cross multiply
    57,278.16x = 79,042.39 × 31,784.42
  4. Step 4: Simplify right side
    57,278.16x = 2,512,316,639.71
  5. Step 5: Solve for x
    x = 2,512,316,639.71/57,278.16
  6. Step 6: Final answer
    x = 43,861.69

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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.