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Finding the Fourth Proportional to 61,802.40, 92,703.60 and 20,249.40

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Solution

The fourth proportional to 61,802.40, 92,703.60 and 20,249.40 is: 30,374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,802.40 : 92,703.60 = 20,249.40 : x
  2. Step 2: Convert to fraction form
    61,802.40/92,703.60 = 20,249.40/x
  3. Step 3: Cross multiply
    61,802.40x = 92,703.60 × 20,249.40
  4. Step 4: Simplify right side
    61,802.40x = 1,877,192,277.84
  5. Step 5: Solve for x
    x = 1,877,192,277.84/61,802.40
  6. Step 6: Final answer
    x = 30,374.10

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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.