Home / 75,420.36-104,079.78-41,886.36

Finding the Fourth Proportional to 75,420.36, 104,079.78 and 41,886.36

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Solution

The fourth proportional to 75,420.36, 104,079.78 and 41,886.36 is: 57,803.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,420.36 : 104,079.78 = 41,886.36 : x
  2. Step 2: Convert to fraction form
    75,420.36/104,079.78 = 41,886.36/x
  3. Step 3: Cross multiply
    75,420.36x = 104,079.78 × 41,886.36
  4. Step 4: Simplify right side
    75,420.36x = 4,359,523,133.80
  5. Step 5: Solve for x
    x = 4,359,523,133.80/75,420.36
  6. Step 6: Final answer
    x = 57,803.00

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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.