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Finding the Fourth Proportional to 61,284.20, 91,829.10 and 40,483.40

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Solution

The fourth proportional to 61,284.20, 91,829.10 and 40,483.40 is: 60,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,284.20 : 91,829.10 = 40,483.40 : x
  2. Step 2: Convert to fraction form
    61,284.20/91,829.10 = 40,483.40/x
  3. Step 3: Cross multiply
    61,284.20x = 91,829.10 × 40,483.40
  4. Step 4: Simplify right side
    61,284.20x = 3,717,554,186.94
  5. Step 5: Solve for x
    x = 3,717,554,186.94/61,284.20
  6. Step 6: Final answer
    x = 60,660.89

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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.