Home / 56,707.56-78,259.50-31,557.60

Finding the Fourth Proportional to 56,707.56, 78,259.50 and 31,557.60

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Solution

The fourth proportional to 56,707.56, 78,259.50 and 31,557.60 is: 43,551.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,707.56 : 78,259.50 = 31,557.60 : x
  2. Step 2: Convert to fraction form
    56,707.56/78,259.50 = 31,557.60/x
  3. Step 3: Cross multiply
    56,707.56x = 78,259.50 × 31,557.60
  4. Step 4: Simplify right side
    56,707.56x = 2,469,681,997.20
  5. Step 5: Solve for x
    x = 2,469,681,997.20/56,707.56
  6. Step 6: Final answer
    x = 43,551.19

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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.