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Finding the Fourth Proportional to 90,154.76, 124,374.44 and 54,324.41

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Solution

The fourth proportional to 90,154.76, 124,374.44 and 54,324.41 is: 74,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,154.76 : 124,374.44 = 54,324.41 : x
  2. Step 2: Convert to fraction form
    90,154.76/124,374.44 = 54,324.41/x
  3. Step 3: Cross multiply
    90,154.76x = 124,374.44 × 54,324.41
  4. Step 4: Simplify right side
    90,154.76x = 6,756,567,586.02
  5. Step 5: Solve for x
    x = 6,756,567,586.02/90,154.76
  6. Step 6: Final answer
    x = 74,944.11

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1.5x scale

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.