Home / 63,420.40-87,437.16-54,563.04

Finding the Fourth Proportional to 63,420.40, 87,437.16 and 54,563.04

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Solution

The fourth proportional to 63,420.40, 87,437.16 and 54,563.04 is: 75,225.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,420.40 : 87,437.16 = 54,563.04 : x
  2. Step 2: Convert to fraction form
    63,420.40/87,437.16 = 54,563.04/x
  3. Step 3: Cross multiply
    63,420.40x = 87,437.16 × 54,563.04
  4. Step 4: Simplify right side
    63,420.40x = 4,770,837,258.57
  5. Step 5: Solve for x
    x = 4,770,837,258.57/63,420.40
  6. Step 6: Final answer
    x = 75,225.59

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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.