Home / 53,708.10-80,621.01-42,685.62

Finding the Fourth Proportional to 53,708.10, 80,621.01 and 42,685.62

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Solution

The fourth proportional to 53,708.10, 80,621.01 and 42,685.62 is: 64,075.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,708.10 : 80,621.01 = 42,685.62 : x
  2. Step 2: Convert to fraction form
    53,708.10/80,621.01 = 42,685.62/x
  3. Step 3: Cross multiply
    53,708.10x = 80,621.01 × 42,685.62
  4. Step 4: Simplify right side
    53,708.10x = 3,441,357,796.88
  5. Step 5: Solve for x
    x = 3,441,357,796.88/53,708.10
  6. Step 6: Final answer
    x = 64,075.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.