Home / 66,672.36-92,029.86-38,385

Finding the Fourth Proportional to 66,672.36, 92,029.86 and 38,385

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Solution

The fourth proportional to 66,672.36, 92,029.86 and 38,385 is: 52,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,672.36 : 92,029.86 = 38,385 : x
  2. Step 2: Convert to fraction form
    66,672.36/92,029.86 = 38,385/x
  3. Step 3: Cross multiply
    66,672.36x = 92,029.86 × 38,385
  4. Step 4: Simplify right side
    66,672.36x = 3,532,566,176.10
  5. Step 5: Solve for x
    x = 3,532,566,176.10/66,672.36
  6. Step 6: Final answer
    x = 52,983.97

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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.