Home / 56,902.72-78,507.48-31,747.36

Finding the Fourth Proportional to 56,902.72, 78,507.48 and 31,747.36

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Solution

The fourth proportional to 56,902.72, 78,507.48 and 31,747.36 is: 43,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,902.72 : 78,507.48 = 31,747.36 : x
  2. Step 2: Convert to fraction form
    56,902.72/78,507.48 = 31,747.36/x
  3. Step 3: Cross multiply
    56,902.72x = 78,507.48 × 31,747.36
  4. Step 4: Simplify right side
    56,902.72x = 2,492,405,230.25
  5. Step 5: Solve for x
    x = 2,492,405,230.25/56,902.72
  6. Step 6: Final answer
    x = 43,801.16

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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.