Home / 56,984.35-78,638.21-31,490.01

Finding the Fourth Proportional to 56,984.35, 78,638.21 and 31,490.01

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Solution

The fourth proportional to 56,984.35, 78,638.21 and 31,490.01 is: 43,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,984.35 : 78,638.21 = 31,490.01 : x
  2. Step 2: Convert to fraction form
    56,984.35/78,638.21 = 31,490.01/x
  3. Step 3: Cross multiply
    56,984.35x = 78,638.21 × 31,490.01
  4. Step 4: Simplify right side
    56,984.35x = 2,476,317,468.64
  5. Step 5: Solve for x
    x = 2,476,317,468.64/56,984.35
  6. Step 6: Final answer
    x = 43,456.10

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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.