Home / 56,907.39-78,536.54-31,418.66

Finding the Fourth Proportional to 56,907.39, 78,536.54 and 31,418.66

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Solution

The fourth proportional to 56,907.39, 78,536.54 and 31,418.66 is: 43,360.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,907.39 : 78,536.54 = 31,418.66 : x
  2. Step 2: Convert to fraction form
    56,907.39/78,536.54 = 31,418.66/x
  3. Step 3: Cross multiply
    56,907.39x = 78,536.54 × 31,418.66
  4. Step 4: Simplify right side
    56,907.39x = 2,467,513,122.72
  5. Step 5: Solve for x
    x = 2,467,513,122.72/56,907.39
  6. Step 6: Final answer
    x = 43,360.15

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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.