Home / 98,724.15-136,239.33-55,712.74

Finding the Fourth Proportional to 98,724.15, 136,239.33 and 55,712.74

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Solution

The fourth proportional to 98,724.15, 136,239.33 and 55,712.74 is: 76,883.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,724.15 : 136,239.33 = 55,712.74 : x
  2. Step 2: Convert to fraction form
    98,724.15/136,239.33 = 55,712.74/x
  3. Step 3: Cross multiply
    98,724.15x = 136,239.33 × 55,712.74
  4. Step 4: Simplify right side
    98,724.15x = 7,590,266,370.06
  5. Step 5: Solve for x
    x = 7,590,266,370.06/98,724.15
  6. Step 6: Final answer
    x = 76,883.58

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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.