Home / 85,146.94-117,506.45-47,421.19

Finding the Fourth Proportional to 85,146.94, 117,506.45 and 47,421.19

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Solution

The fourth proportional to 85,146.94, 117,506.45 and 47,421.19 is: 65,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,146.94 : 117,506.45 = 47,421.19 : x
  2. Step 2: Convert to fraction form
    85,146.94/117,506.45 = 47,421.19/x
  3. Step 3: Cross multiply
    85,146.94x = 117,506.45 × 47,421.19
  4. Step 4: Simplify right side
    85,146.94x = 5,572,295,516.46
  5. Step 5: Solve for x
    x = 5,572,295,516.46/85,146.94
  6. Step 6: Final answer
    x = 65,443.29

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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.