Home / 74,304.28-102,515.02-42,450.64

Finding the Fourth Proportional to 74,304.28, 102,515.02 and 42,450.64

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Solution

The fourth proportional to 74,304.28, 102,515.02 and 42,450.64 is: 58,567.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,304.28 : 102,515.02 = 42,450.64 : x
  2. Step 2: Convert to fraction form
    74,304.28/102,515.02 = 42,450.64/x
  3. Step 3: Cross multiply
    74,304.28x = 102,515.02 × 42,450.64
  4. Step 4: Simplify right side
    74,304.28x = 4,351,828,208.61
  5. Step 5: Solve for x
    x = 4,351,828,208.61/74,304.28
  6. Step 6: Final answer
    x = 58,567.67

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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.