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Finding the Fourth Proportional to 61,434.40, 92,151.60 and 21,992.80

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Solution

The fourth proportional to 61,434.40, 92,151.60 and 21,992.80 is: 32,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,434.40 : 92,151.60 = 21,992.80 : x
  2. Step 2: Convert to fraction form
    61,434.40/92,151.60 = 21,992.80/x
  3. Step 3: Cross multiply
    61,434.40x = 92,151.60 × 21,992.80
  4. Step 4: Simplify right side
    61,434.40x = 2,026,671,708.48
  5. Step 5: Solve for x
    x = 2,026,671,708.48/61,434.40
  6. Step 6: Final answer
    x = 32,989.20

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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.