Home / 75,526.83-104,232.12-49,989.20

Finding the Fourth Proportional to 75,526.83, 104,232.12 and 49,989.20

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Solution

The fourth proportional to 75,526.83, 104,232.12 and 49,989.20 is: 68,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,526.83 : 104,232.12 = 49,989.20 : x
  2. Step 2: Convert to fraction form
    75,526.83/104,232.12 = 49,989.20/x
  3. Step 3: Cross multiply
    75,526.83x = 104,232.12 × 49,989.20
  4. Step 4: Simplify right side
    75,526.83x = 5,210,480,170.79
  5. Step 5: Solve for x
    x = 5,210,480,170.79/75,526.83
  6. Step 6: Final answer
    x = 68,988.47

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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.