Home / 90,202.21-124,581.85-61,472.32

Finding the Fourth Proportional to 90,202.21, 124,581.85 and 61,472.32

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Solution

The fourth proportional to 90,202.21, 124,581.85 and 61,472.32 is: 84,901.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,202.21 : 124,581.85 = 61,472.32 : x
  2. Step 2: Convert to fraction form
    90,202.21/124,581.85 = 61,472.32/x
  3. Step 3: Cross multiply
    90,202.21x = 124,581.85 × 61,472.32
  4. Step 4: Simplify right side
    90,202.21x = 7,658,334,884.26
  5. Step 5: Solve for x
    x = 7,658,334,884.26/90,202.21
  6. Step 6: Final answer
    x = 84,901.86

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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.