Home / 74,412.75-102,704.18-45,741.45

Finding the Fourth Proportional to 74,412.75, 102,704.18 and 45,741.45

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Solution

The fourth proportional to 74,412.75, 102,704.18 and 45,741.45 is: 63,132.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,412.75 : 102,704.18 = 45,741.45 : x
  2. Step 2: Convert to fraction form
    74,412.75/102,704.18 = 45,741.45/x
  3. Step 3: Cross multiply
    74,412.75x = 102,704.18 × 45,741.45
  4. Step 4: Simplify right side
    74,412.75x = 4,697,837,885.55
  5. Step 5: Solve for x
    x = 4,697,837,885.55/74,412.75
  6. Step 6: Final answer
    x = 63,132.16

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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.