Home / 56,754.96-78,321.96-31,605.36

Finding the Fourth Proportional to 56,754.96, 78,321.96 and 31,605.36

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Solution

The fourth proportional to 56,754.96, 78,321.96 and 31,605.36 is: 43,615.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,754.96 : 78,321.96 = 31,605.36 : x
  2. Step 2: Convert to fraction form
    56,754.96/78,321.96 = 31,605.36/x
  3. Step 3: Cross multiply
    56,754.96x = 78,321.96 × 31,605.36
  4. Step 4: Simplify right side
    56,754.96x = 2,475,393,741.71
  5. Step 5: Solve for x
    x = 2,475,393,741.71/56,754.96
  6. Step 6: Final answer
    x = 43,615.46

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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.