Home / 85,076.80-117,406.47-46,840.21

Finding the Fourth Proportional to 85,076.80, 117,406.47 and 46,840.21

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Solution

The fourth proportional to 85,076.80, 117,406.47 and 46,840.21 is: 64,639.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,076.80 : 117,406.47 = 46,840.21 : x
  2. Step 2: Convert to fraction form
    85,076.80/117,406.47 = 46,840.21/x
  3. Step 3: Cross multiply
    85,076.80x = 117,406.47 × 46,840.21
  4. Step 4: Simplify right side
    85,076.80x = 5,499,343,710.16
  5. Step 5: Solve for x
    x = 5,499,343,710.16/85,076.80
  6. Step 6: Final answer
    x = 64,639.76

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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.