Home / 85,320.36-127,718.08-55,674.36

Finding the Fourth Proportional to 85,320.36, 127,718.08 and 55,674.36

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Solution

The fourth proportional to 85,320.36, 127,718.08 and 55,674.36 is: 83,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,320.36 : 127,718.08 = 55,674.36 : x
  2. Step 2: Convert to fraction form
    85,320.36/127,718.08 = 55,674.36/x
  3. Step 3: Cross multiply
    85,320.36x = 127,718.08 × 55,674.36
  4. Step 4: Simplify right side
    85,320.36x = 7,110,622,364.43
  5. Step 5: Solve for x
    x = 7,110,622,364.43/85,320.36
  6. Step 6: Final answer
    x = 83,340.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.