Home / 75,141.36-112,719.54-27,768.89

Finding the Fourth Proportional to 75,141.36, 112,719.54 and 27,768.89

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Solution

The fourth proportional to 75,141.36, 112,719.54 and 27,768.89 is: 41,656.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,141.36 : 112,719.54 = 27,768.89 : x
  2. Step 2: Convert to fraction form
    75,141.36/112,719.54 = 27,768.89/x
  3. Step 3: Cross multiply
    75,141.36x = 112,719.54 × 27,768.89
  4. Step 4: Simplify right side
    75,141.36x = 3,130,095,943.51
  5. Step 5: Solve for x
    x = 3,130,095,943.51/75,141.36
  6. Step 6: Final answer
    x = 41,656.10

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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.