Home / 57,008.84-78,672.69-31,514.79

Finding the Fourth Proportional to 57,008.84, 78,672.69 and 31,514.79

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Solution

The fourth proportional to 57,008.84, 78,672.69 and 31,514.79 is: 43,490.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.84 : 78,672.69 = 31,514.79 : x
  2. Step 2: Convert to fraction form
    57,008.84/78,672.69 = 31,514.79/x
  3. Step 3: Cross multiply
    57,008.84x = 78,672.69 × 31,514.79
  4. Step 4: Simplify right side
    57,008.84x = 2,479,353,599.11
  5. Step 5: Solve for x
    x = 2,479,353,599.11/57,008.84
  6. Step 6: Final answer
    x = 43,490.69

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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.