Home / 98,759.76-136,283.24-54,039.12

Finding the Fourth Proportional to 98,759.76, 136,283.24 and 54,039.12

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Solution

The fourth proportional to 98,759.76, 136,283.24 and 54,039.12 is: 74,571.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,759.76 : 136,283.24 = 54,039.12 : x
  2. Step 2: Convert to fraction form
    98,759.76/136,283.24 = 54,039.12/x
  3. Step 3: Cross multiply
    98,759.76x = 136,283.24 × 54,039.12
  4. Step 4: Simplify right side
    98,759.76x = 7,364,626,360.35
  5. Step 5: Solve for x
    x = 7,364,626,360.35/98,759.76
  6. Step 6: Final answer
    x = 74,571.12

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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.