Home / 40,784.24-61,185.16-12,703.72

Finding the Fourth Proportional to 40,784.24, 61,185.16 and 12,703.72

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Solution

The fourth proportional to 40,784.24, 61,185.16 and 12,703.72 is: 19,058.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,784.24 : 61,185.16 = 12,703.72 : x
  2. Step 2: Convert to fraction form
    40,784.24/61,185.16 = 12,703.72/x
  3. Step 3: Cross multiply
    40,784.24x = 61,185.16 × 12,703.72
  4. Step 4: Simplify right side
    40,784.24x = 777,279,140.80
  5. Step 5: Solve for x
    x = 777,279,140.80/40,784.24
  6. Step 6: Final answer
    x = 19,058.32

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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.