Home / 56,339.56-77,812.44-38,403.76

Finding the Fourth Proportional to 56,339.56, 77,812.44 and 38,403.76

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Solution

The fourth proportional to 56,339.56, 77,812.44 and 38,403.76 is: 53,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,339.56 : 77,812.44 = 38,403.76 : x
  2. Step 2: Convert to fraction form
    56,339.56/77,812.44 = 38,403.76/x
  3. Step 3: Cross multiply
    56,339.56x = 77,812.44 × 38,403.76
  4. Step 4: Simplify right side
    56,339.56x = 2,988,290,270.77
  5. Step 5: Solve for x
    x = 2,988,290,270.77/56,339.56
  6. Step 6: Final answer
    x = 53,040.71

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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.