Home / 92,431.07-127,554.88-49,989.60

Finding the Fourth Proportional to 92,431.07, 127,554.88 and 49,989.60

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Solution

The fourth proportional to 92,431.07, 127,554.88 and 49,989.60 is: 68,985.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,431.07 : 127,554.88 = 49,989.60 : x
  2. Step 2: Convert to fraction form
    92,431.07/127,554.88 = 49,989.60/x
  3. Step 3: Cross multiply
    92,431.07x = 127,554.88 × 49,989.60
  4. Step 4: Simplify right side
    92,431.07x = 6,376,418,006.42
  5. Step 5: Solve for x
    x = 6,376,418,006.42/92,431.07
  6. Step 6: Final answer
    x = 68,985.65

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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.