Home / 90,278.60-124,573.74-55,817.96

Finding the Fourth Proportional to 90,278.60, 124,573.74 and 55,817.96

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Solution

The fourth proportional to 90,278.60, 124,573.74 and 55,817.96 is: 77,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,278.60 : 124,573.74 = 55,817.96 : x
  2. Step 2: Convert to fraction form
    90,278.60/124,573.74 = 55,817.96/x
  3. Step 3: Cross multiply
    90,278.60x = 124,573.74 × 55,817.96
  4. Step 4: Simplify right side
    90,278.60x = 6,953,452,036.37
  5. Step 5: Solve for x
    x = 6,953,452,036.37/90,278.60
  6. Step 6: Final answer
    x = 77,022.15

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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.