Home / 71,931.15-99,265.05-40,099.35

Finding the Fourth Proportional to 71,931.15, 99,265.05 and 40,099.35

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Solution

The fourth proportional to 71,931.15, 99,265.05 and 40,099.35 is: 55,337.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,931.15 : 99,265.05 = 40,099.35 : x
  2. Step 2: Convert to fraction form
    71,931.15/99,265.05 = 40,099.35/x
  3. Step 3: Cross multiply
    71,931.15x = 99,265.05 × 40,099.35
  4. Step 4: Simplify right side
    71,931.15x = 3,980,463,982.72
  5. Step 5: Solve for x
    x = 3,980,463,982.72/71,931.15
  6. Step 6: Final answer
    x = 55,337.14

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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.