Home / 56,690.52-78,239.19-31,198.98

Finding the Fourth Proportional to 56,690.52, 78,239.19 and 31,198.98

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Solution

The fourth proportional to 56,690.52, 78,239.19 and 31,198.98 is: 43,058.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,690.52 : 78,239.19 = 31,198.98 : x
  2. Step 2: Convert to fraction form
    56,690.52/78,239.19 = 31,198.98/x
  3. Step 3: Cross multiply
    56,690.52x = 78,239.19 × 31,198.98
  4. Step 4: Simplify right side
    56,690.52x = 2,440,982,924.03
  5. Step 5: Solve for x
    x = 2,440,982,924.03/56,690.52
  6. Step 6: Final answer
    x = 43,058.04

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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.