Home / 42,132.64-63,237.84-21,370.72

Finding the Fourth Proportional to 42,132.64, 63,237.84 and 21,370.72

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Solution

The fourth proportional to 42,132.64, 63,237.84 and 21,370.72 is: 32,075.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,132.64 : 63,237.84 = 21,370.72 : x
  2. Step 2: Convert to fraction form
    42,132.64/63,237.84 = 21,370.72/x
  3. Step 3: Cross multiply
    42,132.64x = 63,237.84 × 21,370.72
  4. Step 4: Simplify right side
    42,132.64x = 1,351,438,172.04
  5. Step 5: Solve for x
    x = 1,351,438,172.04/42,132.64
  6. Step 6: Final answer
    x = 32,075.80

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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.