Home / 84,739.32-116,945.13-51,216.12

Finding the Fourth Proportional to 84,739.32, 116,945.13 and 51,216.12

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Solution

The fourth proportional to 84,739.32, 116,945.13 and 51,216.12 is: 70,681.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,739.32 : 116,945.13 = 51,216.12 : x
  2. Step 2: Convert to fraction form
    84,739.32/116,945.13 = 51,216.12/x
  3. Step 3: Cross multiply
    84,739.32x = 116,945.13 × 51,216.12
  4. Step 4: Simplify right side
    84,739.32x = 5,989,475,811.50
  5. Step 5: Solve for x
    x = 5,989,475,811.50/84,739.32
  6. Step 6: Final answer
    x = 70,681.19

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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.