Home / 90,160.32-124,371.20-52,430.40

Finding the Fourth Proportional to 90,160.32, 124,371.20 and 52,430.40

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Solution

The fourth proportional to 90,160.32, 124,371.20 and 52,430.40 is: 72,324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,160.32 : 124,371.20 = 52,430.40 : x
  2. Step 2: Convert to fraction form
    90,160.32/124,371.20 = 52,430.40/x
  3. Step 3: Cross multiply
    90,160.32x = 124,371.20 × 52,430.40
  4. Step 4: Simplify right side
    90,160.32x = 6,520,831,764.48
  5. Step 5: Solve for x
    x = 6,520,831,764.48/90,160.32
  6. Step 6: Final answer
    x = 72,324.85

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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.