Home / 61,891.11-85,411.09-37,693.21

Finding the Fourth Proportional to 61,891.11, 85,411.09 and 37,693.21

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Solution

The fourth proportional to 61,891.11, 85,411.09 and 37,693.21 is: 52,017.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,891.11 : 85,411.09 = 37,693.21 : x
  2. Step 2: Convert to fraction form
    61,891.11/85,411.09 = 37,693.21/x
  3. Step 3: Cross multiply
    61,891.11x = 85,411.09 × 37,693.21
  4. Step 4: Simplify right side
    61,891.11x = 3,219,417,963.23
  5. Step 5: Solve for x
    x = 3,219,417,963.23/61,891.11
  6. Step 6: Final answer
    x = 52,017.46

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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.