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Finding the Fourth Proportional to 92,234.40, 138,416.40 and 39,681.60

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Solution

The fourth proportional to 92,234.40, 138,416.40 and 39,681.60 is: 59,550.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,234.40 : 138,416.40 = 39,681.60 : x
  2. Step 2: Convert to fraction form
    92,234.40/138,416.40 = 39,681.60/x
  3. Step 3: Cross multiply
    92,234.40x = 138,416.40 × 39,681.60
  4. Step 4: Simplify right side
    92,234.40x = 5,492,584,218.24
  5. Step 5: Solve for x
    x = 5,492,584,218.24/92,234.40
  6. Step 6: Final answer
    x = 59,550.28

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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.