Home / 40,751.40-61,127.10-30,909.90

Finding the Fourth Proportional to 40,751.40, 61,127.10 and 30,909.90

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Solution

The fourth proportional to 40,751.40, 61,127.10 and 30,909.90 is: 46,364.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,751.40 : 61,127.10 = 30,909.90 : x
  2. Step 2: Convert to fraction form
    40,751.40/61,127.10 = 30,909.90/x
  3. Step 3: Cross multiply
    40,751.40x = 61,127.10 × 30,909.90
  4. Step 4: Simplify right side
    40,751.40x = 1,889,432,548.29
  5. Step 5: Solve for x
    x = 1,889,432,548.29/40,751.40
  6. Step 6: Final answer
    x = 46,364.85

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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.