Home / 53,720.78-80,186.84-49,762.32

Finding the Fourth Proportional to 53,720.78, 80,186.84 and 49,762.32

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Solution

The fourth proportional to 53,720.78, 80,186.84 and 49,762.32 is: 74,278.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,720.78 : 80,186.84 = 49,762.32 : x
  2. Step 2: Convert to fraction form
    53,720.78/80,186.84 = 49,762.32/x
  3. Step 3: Cross multiply
    53,720.78x = 80,186.84 × 49,762.32
  4. Step 4: Simplify right side
    53,720.78x = 3,990,283,191.87
  5. Step 5: Solve for x
    x = 3,990,283,191.87/53,720.78
  6. Step 6: Final answer
    x = 74,278.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.