Home / 85,424.49-117,885.17-47,186.55

Finding the Fourth Proportional to 85,424.49, 117,885.17 and 47,186.55

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Solution

The fourth proportional to 85,424.49, 117,885.17 and 47,186.55 is: 65,117.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,424.49 : 117,885.17 = 47,186.55 : x
  2. Step 2: Convert to fraction form
    85,424.49/117,885.17 = 47,186.55/x
  3. Step 3: Cross multiply
    85,424.49x = 117,885.17 × 47,186.55
  4. Step 4: Simplify right side
    85,424.49x = 5,562,594,586.43
  5. Step 5: Solve for x
    x = 5,562,594,586.43/85,424.49
  6. Step 6: Final answer
    x = 65,117.09

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1.5x scale

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.