Home / 85,143.62-117,501.83-47,417.87

Finding the Fourth Proportional to 85,143.62, 117,501.83 and 47,417.87

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Solution

The fourth proportional to 85,143.62, 117,501.83 and 47,417.87 is: 65,438.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,143.62 : 117,501.83 = 47,417.87 : x
  2. Step 2: Convert to fraction form
    85,143.62/117,501.83 = 47,417.87/x
  3. Step 3: Cross multiply
    85,143.62x = 117,501.83 × 47,417.87
  4. Step 4: Simplify right side
    85,143.62x = 5,571,686,090.01
  5. Step 5: Solve for x
    x = 5,571,686,090.01/85,143.62
  6. Step 6: Final answer
    x = 65,438.68

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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.