Home / 61,655.18-85,063.37-40,135.10

Finding the Fourth Proportional to 61,655.18, 85,063.37 and 40,135.10

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Solution

The fourth proportional to 61,655.18, 85,063.37 and 40,135.10 is: 55,372.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,655.18 : 85,063.37 = 40,135.10 : x
  2. Step 2: Convert to fraction form
    61,655.18/85,063.37 = 40,135.10/x
  3. Step 3: Cross multiply
    61,655.18x = 85,063.37 × 40,135.10
  4. Step 4: Simplify right side
    61,655.18x = 3,414,026,235.29
  5. Step 5: Solve for x
    x = 3,414,026,235.29/61,655.18
  6. Step 6: Final answer
    x = 55,372.91

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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.