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Finding the Fourth Proportional to 61,406.30, 92,151.74 and 21,425.51

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Solution

The fourth proportional to 61,406.30, 92,151.74 and 21,425.51 is: 32,153.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,406.30 : 92,151.74 = 21,425.51 : x
  2. Step 2: Convert to fraction form
    61,406.30/92,151.74 = 21,425.51/x
  3. Step 3: Cross multiply
    61,406.30x = 92,151.74 × 21,425.51
  4. Step 4: Simplify right side
    61,406.30x = 1,974,398,026.89
  5. Step 5: Solve for x
    x = 1,974,398,026.89/61,406.30
  6. Step 6: Final answer
    x = 32,153.02

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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.