Home / 90,078.24-124,320.32-51,837.01

Finding the Fourth Proportional to 90,078.24, 124,320.32 and 51,837.01

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Solution

The fourth proportional to 90,078.24, 124,320.32 and 51,837.01 is: 71,542.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,078.24 : 124,320.32 = 51,837.01 : x
  2. Step 2: Convert to fraction form
    90,078.24/124,320.32 = 51,837.01/x
  3. Step 3: Cross multiply
    90,078.24x = 124,320.32 × 51,837.01
  4. Step 4: Simplify right side
    90,078.24x = 6,444,393,671.04
  5. Step 5: Solve for x
    x = 6,444,393,671.04/90,078.24
  6. Step 6: Final answer
    x = 71,542.18

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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.