Home / 58,537.30-80,781.47-31,680.00

Finding the Fourth Proportional to 58,537.30, 80,781.47 and 31,680.00

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Solution

The fourth proportional to 58,537.30, 80,781.47 and 31,680.00 is: 43,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,537.30 : 80,781.47 = 31,680.00 : x
  2. Step 2: Convert to fraction form
    58,537.30/80,781.47 = 31,680.00/x
  3. Step 3: Cross multiply
    58,537.30x = 80,781.47 × 31,680.00
  4. Step 4: Simplify right side
    58,537.30x = 2,559,156,846.85
  5. Step 5: Solve for x
    x = 2,559,156,846.85/58,537.30
  6. Step 6: Final answer
    x = 43,718.40

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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.