Home / 90,464.03-124,837.40-54,647.79

Finding the Fourth Proportional to 90,464.03, 124,837.40 and 54,647.79

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Solution

The fourth proportional to 90,464.03, 124,837.40 and 54,647.79 is: 75,412.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,464.03 : 124,837.40 = 54,647.79 : x
  2. Step 2: Convert to fraction form
    90,464.03/124,837.40 = 54,647.79/x
  3. Step 3: Cross multiply
    90,464.03x = 124,837.40 × 54,647.79
  4. Step 4: Simplify right side
    90,464.03x = 6,822,087,746.11
  5. Step 5: Solve for x
    x = 6,822,087,746.11/90,464.03
  6. Step 6: Final answer
    x = 75,412.16

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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.