Home / 56,201.11-77,555.22-30,708.35

Finding the Fourth Proportional to 56,201.11, 77,555.22 and 30,708.35

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Solution

The fourth proportional to 56,201.11, 77,555.22 and 30,708.35 is: 42,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,201.11 : 77,555.22 = 30,708.35 : x
  2. Step 2: Convert to fraction form
    56,201.11/77,555.22 = 30,708.35/x
  3. Step 3: Cross multiply
    56,201.11x = 77,555.22 × 30,708.35
  4. Step 4: Simplify right side
    56,201.11x = 2,381,592,840.09
  5. Step 5: Solve for x
    x = 2,381,592,840.09/56,201.11
  6. Step 6: Final answer
    x = 42,376.26

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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.