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Finding the Fourth Proportional to 90,002.70, 134,927.50 and 54,966.96

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Solution

The fourth proportional to 90,002.70, 134,927.50 and 54,966.96 is: 82,403.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,002.70 : 134,927.50 = 54,966.96 : x
  2. Step 2: Convert to fraction form
    90,002.70/134,927.50 = 54,966.96/x
  3. Step 3: Cross multiply
    90,002.70x = 134,927.50 × 54,966.96
  4. Step 4: Simplify right side
    90,002.70x = 7,416,554,495.40
  5. Step 5: Solve for x
    x = 7,416,554,495.40/90,002.70
  6. Step 6: Final answer
    x = 82,403.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.