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Finding the Fourth Proportional to 90,402, 124,754.76 and 52,676.24

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Solution

The fourth proportional to 90,402, 124,754.76 and 52,676.24 is: 72,693.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,402 : 124,754.76 = 52,676.24 : x
  2. Step 2: Convert to fraction form
    90,402/124,754.76 = 52,676.24/x
  3. Step 3: Cross multiply
    90,402x = 124,754.76 × 52,676.24
  4. Step 4: Simplify right side
    90,402x = 6,571,611,678.90
  5. Step 5: Solve for x
    x = 6,571,611,678.90/90,402
  6. Step 6: Final answer
    x = 72,693.21

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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.