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Finding the Fourth Proportional to 90,081.44, 124,295.28 and 56,532.32

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Solution

The fourth proportional to 90,081.44, 124,295.28 and 56,532.32 is: 78,003.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,081.44 : 124,295.28 = 56,532.32 : x
  2. Step 2: Convert to fraction form
    90,081.44/124,295.28 = 56,532.32/x
  3. Step 3: Cross multiply
    90,081.44x = 124,295.28 × 56,532.32
  4. Step 4: Simplify right side
    90,081.44x = 7,026,700,543.45
  5. Step 5: Solve for x
    x = 7,026,700,543.45/90,081.44
  6. Step 6: Final answer
    x = 78,003.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.