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Finding the Fourth Proportional to 61,339.48, 92,009.12 and 19,222.80

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Solution

The fourth proportional to 61,339.48, 92,009.12 and 19,222.80 is: 28,834.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,339.48 : 92,009.12 = 19,222.80 : x
  2. Step 2: Convert to fraction form
    61,339.48/92,009.12 = 19,222.80/x
  3. Step 3: Cross multiply
    61,339.48x = 92,009.12 × 19,222.80
  4. Step 4: Simplify right side
    61,339.48x = 1,768,672,911.94
  5. Step 5: Solve for x
    x = 1,768,672,911.94/61,339.48
  6. Step 6: Final answer
    x = 28,834.17

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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.