Home / 85,130.66-117,485.61-46,890.20

Finding the Fourth Proportional to 85,130.66, 117,485.61 and 46,890.20

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Solution

The fourth proportional to 85,130.66, 117,485.61 and 46,890.20 is: 64,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130.66 : 117,485.61 = 46,890.20 : x
  2. Step 2: Convert to fraction form
    85,130.66/117,485.61 = 46,890.20/x
  3. Step 3: Cross multiply
    85,130.66x = 117,485.61 × 46,890.20
  4. Step 4: Simplify right side
    85,130.66x = 5,508,923,162.59
  5. Step 5: Solve for x
    x = 5,508,923,162.59/85,130.66
  6. Step 6: Final answer
    x = 64,711.39

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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.