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Finding the Fourth Proportional to 56,850.48, 78,347.16 and 40,907.16

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Solution

The fourth proportional to 56,850.48, 78,347.16 and 40,907.16 is: 56,375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,850.48 : 78,347.16 = 40,907.16 : x
  2. Step 2: Convert to fraction form
    56,850.48/78,347.16 = 40,907.16/x
  3. Step 3: Cross multiply
    56,850.48x = 78,347.16 × 40,907.16
  4. Step 4: Simplify right side
    56,850.48x = 3,204,959,809.67
  5. Step 5: Solve for x
    x = 3,204,959,809.67/56,850.48
  6. Step 6: Final answer
    x = 56,375.25

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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.