Home / 56,720.56-78,277.44-31,570.60

Finding the Fourth Proportional to 56,720.56, 78,277.44 and 31,570.60

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Solution

The fourth proportional to 56,720.56, 78,277.44 and 31,570.60 is: 43,569.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,720.56 : 78,277.44 = 31,570.60 : x
  2. Step 2: Convert to fraction form
    56,720.56/78,277.44 = 31,570.60/x
  3. Step 3: Cross multiply
    56,720.56x = 78,277.44 × 31,570.60
  4. Step 4: Simplify right side
    56,720.56x = 2,471,265,747.26
  5. Step 5: Solve for x
    x = 2,471,265,747.26/56,720.56
  6. Step 6: Final answer
    x = 43,569.14

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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.