Home / 68,128.98-94,017.09-38,320.98

Finding the Fourth Proportional to 68,128.98, 94,017.09 and 38,320.98

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Solution

The fourth proportional to 68,128.98, 94,017.09 and 38,320.98 is: 52,882.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,128.98 : 94,017.09 = 38,320.98 : x
  2. Step 2: Convert to fraction form
    68,128.98/94,017.09 = 38,320.98/x
  3. Step 3: Cross multiply
    68,128.98x = 94,017.09 × 38,320.98
  4. Step 4: Simplify right side
    68,128.98x = 3,602,827,025.55
  5. Step 5: Solve for x
    x = 3,602,827,025.55/68,128.98
  6. Step 6: Final answer
    x = 52,882.44

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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.