Home / 78,953.05-108,950.56-43,135.93

Finding the Fourth Proportional to 78,953.05, 108,950.56 and 43,135.93

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Solution

The fourth proportional to 78,953.05, 108,950.56 and 43,135.93 is: 59,525.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,953.05 : 108,950.56 = 43,135.93 : x
  2. Step 2: Convert to fraction form
    78,953.05/108,950.56 = 43,135.93/x
  3. Step 3: Cross multiply
    78,953.05x = 108,950.56 × 43,135.93
  4. Step 4: Simplify right side
    78,953.05x = 4,699,683,729.62
  5. Step 5: Solve for x
    x = 4,699,683,729.62/78,953.05
  6. Step 6: Final answer
    x = 59,525.04

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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.