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Finding the Fourth Proportional to 61,862.67, 85,370.67 and 37,989.09

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Solution

The fourth proportional to 61,862.67, 85,370.67 and 37,989.09 is: 52,425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,862.67 : 85,370.67 = 37,989.09 : x
  2. Step 2: Convert to fraction form
    61,862.67/85,370.67 = 37,989.09/x
  3. Step 3: Cross multiply
    61,862.67x = 85,370.67 × 37,989.09
  4. Step 4: Simplify right side
    61,862.67x = 3,243,154,065.99
  5. Step 5: Solve for x
    x = 3,243,154,065.99/61,862.67
  6. Step 6: Final answer
    x = 52,425.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.