Home / 85,934.29-128,884.28-29,002.63

Finding the Fourth Proportional to 85,934.29, 128,884.28 and 29,002.63

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Solution

The fourth proportional to 85,934.29, 128,884.28 and 29,002.63 is: 43,498.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,934.29 : 128,884.28 = 29,002.63 : x
  2. Step 2: Convert to fraction form
    85,934.29/128,884.28 = 29,002.63/x
  3. Step 3: Cross multiply
    85,934.29x = 128,884.28 × 29,002.63
  4. Step 4: Simplify right side
    85,934.29x = 3,737,982,441.24
  5. Step 5: Solve for x
    x = 3,737,982,441.24/85,934.29
  6. Step 6: Final answer
    x = 43,498.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.