Home / 61,005.42-84,175.51-38,331.28

Finding the Fourth Proportional to 61,005.42, 84,175.51 and 38,331.28

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Solution

The fourth proportional to 61,005.42, 84,175.51 and 38,331.28 is: 52,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,005.42 : 84,175.51 = 38,331.28 : x
  2. Step 2: Convert to fraction form
    61,005.42/84,175.51 = 38,331.28/x
  3. Step 3: Cross multiply
    61,005.42x = 84,175.51 × 38,331.28
  4. Step 4: Simplify right side
    61,005.42x = 3,226,555,042.95
  5. Step 5: Solve for x
    x = 3,226,555,042.95/61,005.42
  6. Step 6: Final answer
    x = 52,889.65

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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.