Home / 56,735.78-78,292.31-31,237.18

Finding the Fourth Proportional to 56,735.78, 78,292.31 and 31,237.18

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Solution

The fourth proportional to 56,735.78, 78,292.31 and 31,237.18 is: 43,105.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,735.78 : 78,292.31 = 31,237.18 : x
  2. Step 2: Convert to fraction form
    56,735.78/78,292.31 = 31,237.18/x
  3. Step 3: Cross multiply
    56,735.78x = 78,292.31 × 31,237.18
  4. Step 4: Simplify right side
    56,735.78x = 2,445,630,980.09
  5. Step 5: Solve for x
    x = 2,445,630,980.09/56,735.78
  6. Step 6: Final answer
    x = 43,105.62

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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.