Home / 85,148.01-117,553.16-56,506.51

Finding the Fourth Proportional to 85,148.01, 117,553.16 and 56,506.51

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Solution

The fourth proportional to 85,148.01, 117,553.16 and 56,506.51 is: 78,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,148.01 : 117,553.16 = 56,506.51 : x
  2. Step 2: Convert to fraction form
    85,148.01/117,553.16 = 56,506.51/x
  3. Step 3: Cross multiply
    85,148.01x = 117,553.16 × 56,506.51
  4. Step 4: Simplify right side
    85,148.01x = 6,642,517,940.77
  5. Step 5: Solve for x
    x = 6,642,517,940.77/85,148.01
  6. Step 6: Final answer
    x = 78,011.43

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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.